The only delivery book known details sales between 1879 and 1894 inclusive. The date against a serial numbers is not always in strict chronological sequence therefore some care must be taken in deducing dates from this table for models prior to Serial No. 10000. The examples given, in italics, are again, those listed in 'Notes on Modern Microscope Manufacturers'. Entries in green represent numbers whose model is known from entries in the delivery book. The table is interspersed with dateline details in bold. |
The only way to resolve
what actually was issued, and when, is by the assimilation of large amounts of data.
Hopefully the tables, as they are updated, will enable an owner to get a reasonably clear
picture of when their stand was issued. I have not restricted this table to the models to which this site is targetted, as other models, being contemporary with these stands will have serial numbers that are relevant. It seems probable that any stand that went back to Watsons for sevicing or to be adjusted will have had a new Magnification card issued. This would be particularly so if new objectives were affixed. Certainly this could account for anomalies in numbering. The following table lists those objectives examined to date. There really is not enough data here to arrive at any sort of conclusion. The key to arriving at a reasonable dating system is more data. It certainly looks as if batches of numbers were released for particular styles of objective, but the batches not in number/chronological order, though the objectives within each batch probably are in chronological order. The column representing the Name Inscription has the following codes used:-
|
458 | 16mm | Holos | - | B | 250mm Tube Length All Bright Brass |
1080 | 1/6 | No type | - | C | Bright Brass and nickel - Tapered Style |
1550 | 1/12 | Versalic | - | C | Black/chrome/brass - Tapered Style |
2355 | 2mm oil Imm. | Holos | - | C | Brass and Nickel |
2416 | x40 NA .65 | Para | - | E | Service III |
3098 | O.I. x100 | Para 1.30 PHASE | - | E | Service III |
3657 | 4mm | Holos | 11th August 1941 | C | All bright Brass |
4314 | 1/12 | Versalic | - | C | Black and Chrome - Tapered Style |
4969 | x40 | Para 0.65 | - | E | Service III |
5036 | 1/6 | Para | - | - | Black and Brass |
5288 | x40 NA .65 | Para | - | E | Service III |
5352 | O.I. x100 NA 1.30 | Para | - | E | Service III |
6445 | 25mm | Holos | 11th August 1941 | C | All bright Brass |
7355 | 16mm | Holos | 11th August 1941 | C | All bright Brass |
8545 | 16mm | Holos | - | C | All Bright Brass |
9108 | 1/6 | Para | - | D | Brass and Nickel |
9276 | 2in. | Holos | - | C | All Bright Brass |
9317 | 1/12 oi | Utility | - | U | - |
9635 | 1/6 | Para | - | D | Brass and Chrome |
10133 | 1/12 | Utility | - | D | Black and Chrome |
10552 | 1/12in. | Utility | - | D | Black & Chrome- Tapered pattern |
10830 | 1/12 | Para | 7th October 1946 | U | - |
11663 | 2in. | Para | - | C | All Black - Tapered pattern |
11690 | 1/12in. | Utility | - | D | Black & Chrome- Tapered pattern |
12495 | x40 NA .65 | Para Phase | - | E | MicroSystem 70 |
12988 | oil x100 NA 1.30 | Para | - | E | Service III |
13290 | oil x90 NA 1.30 | Fluorite Phase | - | E | MicroSystem 70 |
13305 | x40 | Para | - | D | MicroSystem 70 |
13764 | oil x90 NA 1.30 | Fluorite Phase | - | E | MicroSystem 70 |
15498 | 2/3 | Para | 30th September 1930 | U | - |
15504 | 1/6 | Para | 30th September 1930 | C | - |
15718 | 1/12 oil imm. | Versalic | - | C | Black and Nickel with iris |
16456 | oil x100 NA 1.30 | Para | - | E | MicroSystem 70 |
18004 | 1/6 | Para | 10th September 1935 | C | Black and Chrome - Tapered Style |
18172 | 1/12 | Oil | 24th May 1946 | C | Black and Chrome - Tapered Style |
18197 | 2/3 | Para | 10th September 1935 | C | Black and Chrome - Tapered Style |
18333 | oil x90 NA 1.30 | Fluorite | - | E | MicroSystem 70 |
18587 | 1/6 in. | Para | 22nd November 1935 | - | Black and Brass |
18705 | 2/3 in. | Para | 22nd November 1935 | - | Black and Brass |
19634 | x40 NA .65 | Para | - | E | MicroSystem 70 |
20695 | 1/12 | Para | 26th April 1949 | U | - |
21685 | 1/12 oil imm. | Versalic | - | C | Black and Chrome - Tapered Style |
22173 | 1/12 oil imm. | Versalic Metallurgy | - | C | Black and Chrome - Short - Tapered Style |
24920 | 2/3 | Para | - | D | Brass and Chrome - Tapered Style |
25367 | 1/6 | Para | - | D | All Bright Brass - Tapered Style |
32327 | 2/3 | Para | - | D | Brass and Nickel |
32976 | 1/6 | Para | - | D | All Bright Brass |
33144 | 2/3 | Para | - | D | Brass and nickel |
35281 | 2/3 | Para | - | D | Brass and nickel |
36636 | 2/3 | Para | 24th May 1946 | D | - |
36751 | 1/6 | Para | 24th May 1946 | D | Black and Chrome - Tapered Style |
38381 | 2/3 | Para | - | D | Black and Chrome - Tapered Pattern |
38978 | 1/6 | Para | - | D | Black and Chrome - Tapered Pattern |
39646 | 1/6 | Para | - | D | Black and Brass - Tapered Pattern |
41119 | 1/6 | Para | - | D | Black and Chrome - Tapered Style |
41081 | 1/6 | Para | - | D | Black and Chrome - Tapered Style |
42019 | 2/3 | Para | - | D | Black and Chrome - Tapered Style |
42121 | 1/6 | Para | - | D | Black and Chrome - Tapered Style |
42187 | 16mm | Para | 29th May 1959 | U | - |
42572 | 40mm | Para | - | E | Black and Chrome Service II style |
43293 | 16mm | Para | - | E | Black and Chrome - Service II style |
44204 | 4mm | Para | - | E | Black and Chrome - Service II style |
44520 | 40mm | Para | - | E | Purple and Chrome - Bactil 60 |
44986 | 16mm | Para | - | E | Purple and Chrome - Bactil 60 |
45036 | 4mm | Para | - | E | Purple and Chrome - Bactil 60 |
45482 | 2mm | Para | - | U | - |
46235 | 1/6 | Para | - | D | Black and Chrome - Tapered Pattern |
46236 | 1/6 | Para | 14th December 1948 | U | Black and Chrome - Tapered Pattern |
46287 | 40mm | Para | - | E | Black and Chrome Service II style |
47324 | 2mm x100 | Para | - | E | Chrome Service II style |
47522 | 1/6 | Para | 26th April 1949 | U | - |
47855 | x10 | Para | - | U | - |
48217 | 2/3 | Para | 26th April 1949 | U | - |
50545 | 1/6 | Para | - | D | Black and Chrome Tapered Style |
51715 | 4mm | Para | - | E | Black and Chrome Service II style |
51779 | 4mm | Para | - | E | Black and Chrome Service II style |
52148 | 40mm | Para | - | E | Black and Chrome Service II style |
52506 | 1/6 | Para Metallurgy 22mm tube length | - | D | Black and Chrome - Tapered Style - Short |
54867 | 16mm | Para | - | E | Black and Chrome Service II style |
55302 | 16mm | Para | - | E | Black and Chrome Service II style |
56474 | 40mm | Para | - | E | Black and Chrome Service II style |
57763 | 1/6 | Para | 7th October 1946 | U | - |
88657 | x10 | Para | - | U | - |
111224 | 4mm | Holos | - | C | All Silver Nickel |
132360 | x5 Stereo Objectives | - | - | N | Grey, bayonet fitting. These objectives usually bear the same number as the stand they were supplied on, so it may be assumed that a Stereo stand existed with this number and such a stand number has been entered into the preceding table. |
134678 | x5 Stereo Objectives | - | - | N | Grey, bayonet fitting. These objectives usually bear the same number as the stand they were supplied on, so it may be assumed that a Stereo stand existed with this number and such a stand number has been entered into the preceding table. |
165624 | 1/6 | Argus | - | D | Black and nickel - Tapered Pattern |
181133 | 1/6 | Argus | - | D | All black - Tapered Pattern |
181137 | 1/6 | Argus | - | D | All black - Tapered Pattern |
181140 | 1/6 | Argus | - | D | All black - Tapered Pattern |
181142 | 1/6 | Argus | - | D | All black - Tapered Pattern |
181162 | 2/3 | Argus | - | D | All black - Tapered Pattern |
188612 | 1/6 | Argus | - | D | All black - Tapered Pattern |
189167 | 1/6 | Argus | - | D | All Black - Tapered pattern |
193658 | 2/3 | Argus | - | D | All Black - Tapered pattern |
197893 | 1/6 | Para | - | D | Black and Chrome - Tapered pattern |
198875 | 2/3 | Para | - | D | Black and Chrome - Tapered pattern |
198886 | 2/3 | Para | 14th December 1948 | U | Black and Chrome - Tapered pattern |
200835 | 2/3 | Para | - | D | Black and Chrome - Tapered pattern |
319763 | x40 | Para | - | U | - |
499693 | x10 NA .30 | Para | - | E | Short, all chrome with coloured ring |
516318 | x10 NA .30 | Para | - | E | Short, all chrome with coloured ring |
557908 | Oil x100 | Para 1.28 | - | E | All chrome with coloured ring |
571878 | oil x100 NA 1.28 | Para | - | E | Short, all chrome with coloured ring |
B5663 | 2mm | Para | 25th July 1951 | U | - |
B5665 | 2mm | Para | - | U | - |
B5667 | 2mm | Para | - | U | - |
B5675 | 2mm | Para | 25th July 1951 | U | - |
B5800 | 2mm | Para | - | U | - |
B7173 | 2/3 | Para | 7th October 1946 | U | - |
B7400 | 4mm | Para | 25th July 1951 | U | - |
B7408 | 4mm | Para | 25th July 1951 | U | - |
B8330 | 16mm | Para | - | E | Black and Chrome - Service II style |
B8613 | 2mm | Para | - | U | - |
B9223 | 16mm | Para | 25th July 1951 | U | - |
B9226 | 16mm | Para | 25th July 1951 | U | - |
B9273 | 40mm | Para | 25th July 1951 | U | - |
B9315 | 40mm | Para | 25th July 1951 | U | - |
B10775 | x40 | Para | - | U | - |
B10861 | 4mm | Para | - | E | Black and Chrome - Service II style |
B11320 | 16mm | Para | - | E | Black and Chrome - Service II style |
B11806 | 4mm | Para | - | E | Black and Chrome - Service II style |
B12912 | 4mm | Para Metall. | - | E | Black and Chrome - Service II style |
B13109 | 4mm | Para | 30th September 1952 | E | Black and Chrome - Service II style |
B13832 | 16mm | Para | - | E | Black and Chrome - Service II style |
B14008 | 2mm | Para | 30th September 1952 | E | Black and Chrome - Service II style |
B14281 | 2mm | Para | - | U | - |
B14565 | 16mm | Para | 30th September 1952 | E | Black and Chrome - Service II style |
B14741 | 40mm | Para | 5th August 1953 | U | - |
B16755 | 4mm | Para | - | E | Black and Chrome - Service II style |
B17932 | 2mm | Para | 5th August 1953 | U | - |
B18033 | 4mm | Para | 5th August 1953 | U | - |
B18658 | 16mm | Para | 5th August 1953 | U | - |
B19768 | 4mm | Para | - | E | Black and Chrome - Service II style |
B21559 | 4mm | Para | - | E | Black and Chrome - Service II style |
B21643 | 16mm | Para | - | E | Black and Chrome - Service II style |
B23132 | 4mm | Para | - | E | Black and Chrome - Service II style |
B24260 | 40mm | Para | - | E | Black and Chrome - Service II style |
B29103 | 40mm | Para | 11th May 1956 | U | - |
B29464 | 4mm | Para | 11th May 1956 | U | - |
B29602 | x100 oi | Para | - | U | - |
B29744 | 2mm | Para | 11th May 1956 | U | - |
B29774 | 50mm | Para | - | E | Black and Chrome Service II style |
B30308 | 16mm | Para | 11th May 1956 | U | - |
B30851 | 2mm | Para | 10th August 1956 | U | - |
B31029 | 4mm | Para | 10th August 1956 | U | - |
B31412 | 16mm | Para | 10th August 1956 | U | - |
B32211 | 16mm | Para | - | E | Black and Chrome - Service II style |
B32816 | 4mm | Para | - | E | Black and Chrome - Service II style |
B33309 | 25mm | Para | - | E | Black and Chrome - Service II style |
B33445 | 22mm | Para | - | E | Black and Chrome Service II style |
B33862 | 2mm | Para | - | E | Chrome Service II style |
B37878 | 2mm | Para | 29th May 1959 | U | - |
B41314 | 4mm | Para | 29th May 1959 | U | - |
C7854 | 4mm | Para | - | E | Black and Chrome - Service II style |
C10292 | 4mm | Para | - | E | Chrome - Service II style |
C10586 | 2mm | Para | - | E | Chrome - Service II style |
C10588 | 2mm | Para | - | E | Chrome - Service II style |
C10593 | 2mm | Para | - | E | Chrome - Service II style |
E3819 | 3.6mm | Fluorite | - | E | - |
E3886 | 3.6mm | Fluorite x50 Oil. Imm. NA .95 | - | E | - |