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Current transformer serial no.L76614, ranges 100/5

Electricity and Magnetism

1925
Made by Company craftsmen at Kilburn camera repair works. 1/8th scale model of Brownie camera made for presentation to the Queen Mary's Doll's House project. Fully working. With 2 negatives taken with camera - one of men who made it; 2 contact prints and two enlargements. Camera not presented as a second, folding model was thought more appropriate. Lens: 1/2" piano convex from microscope objective; finder lenses watch crown jewels. Cost approxiamtely £30; six weeks work. Makers and photographers C. Abbott; A. Bartlett; D. Cross; S Le Frank.

Miniature Scale Model of 2C Brownie camera

Photographic Technology

1924

Ford Model T Car Ignition Coil

Road Transport

1924

Ford Model T car ignition coil

Road Transport

1924
Orange and black vulcanite fountain pen with gold nib, c.1925.

Orange and black vulcanite fountain pen with gold nib, c.1925.

Printing & Writing

1925

Two steel plates from, Private automatic branch ex

Telecommunications

1923

One pair B.T.H. headphones with BBC marking

Radio Communication

c. 1923

10-point 3-level minor switch, for dialled digit s

Telecommunications

1925

Three photographic prints of Leibniz's calculating

Mathematics

1925

McVitie Weston valve collection, Myers valve

Electronic Components

1924

A Bench micrometer-head from a bench type measuri

Industrial Metrology

1924

McVitie Weston valve collection, Western Electric valve, type 101-D

Electronic Components

c. 1925

McVitie Weston valve collection, Mullard valve, type S4

Electronic Components

c. 1925
Locomotive Worksplate, "Kerr, Stuart & Co Ltd. No 4298 - 1924, London & Stoke-on-Trent", brass, oval, 0-4-0 saddle tank outside cylinders locomotive, 2ft gauge KS Type "Wren", to H Boot & Sons, Elstree (contractors), to Alston Limestone Co, Cowfields Whinstone Quarry, to British Gypsum, Long Meg Gypsum Mines, Lazonby, scrapped May 1951.

locomotive worksplate

Locomotives and Rolling Stock Components

1924

McVitie Weston valve collection, Mullard valve, type HF

Electronic Components

1924
Locomotive Nameplate: "Sir Lamiel", ex Southern Railway 4-6-0 King Arthur Class Locomotive No.777 of 1925.

locomotive nameplate - sir lamiel

Locomotives and Rolling Stock Components

1925

McVitie Weston valve collection, Cunningham valve, type CX-299

Electronic Components

1924

McVitie Weston valve collection, Ediswan valve, type P.V.8DE

Electronic Components

1925
Locomotive Worksplate, Southern Railway, "Southern Railway E188", red, brass, oval, ex SR 2-6-2T LEW (built by Manning Wardle & Co 2042/7/1925), for Lynton & Barnstaple Line, exported to Brazil November 1935.

locomotive worksplate

Locomotives and Rolling Stock Components

1925

McVitie Weston valve collection, MOV/GEC valve, type L.S.2

Electronic Components

1924

"Precision" Microprojector

Photographic Technology

1925

McVitie Weston valve collection, Marconi valve, type L.S.1

Electronic Components

1924

McVitie Weston valve collection, Marconi-Osram Fleming 4-electrode valve

Electronic Components

1923

McVitie Weston valve collection, Marconi Osram valve, type L.S.3

Electronic Components

1924
Locomotive Worksplate, "Beyer Peacock & Co Ltd, H.W. Garratt's Patent. No 17165 - 1907, Manchester 1925, BP 6209/25", brass, oval, if this plate for British built Garratt then must be for London & North Eastern Railway 280+ 0-8-2 tank locomotive, Class U1, No. 2395, renumbered to 9999 March 1946, renumbered to 69999 November 1948, withdrawn December 1955.

locomotive worksplate

Locomotives and Rolling Stock Components

1925
Locomotive Worksplate, LNER, "London & North Eastern Railway 69838, Hawthorn Leslie & Co, 1925", cast brass, oval, A5/2 4-6-2T, LNER No. 1768, renumbered 9838 August 1946, British Railways 69838 March 1949, withdrawn November 1958.

locomotive worksplate

Locomotives and Rolling Stock Components

1925
Plaster cast of medallion, London & North Eastern Railway, to commemorate 100th anniversary of Locomotion No.1, in glazed oak frame, 1925.

Plaster cast of centenary medal, London & North Eastern Railway

Coins and Medals

1925
Tender worksplate, London & North Eastern Railway, "London & North Eastern Railway 8900, Darlington Works 1923", cast brass, oval, for Class B16 4-6-0.

Tender worksplate, London & North Eastern Railway

Locomotives and Rolling Stock Components

1923

Silver plated teapot, London & North Eastern Railway

Passenger Comforts

1923
Cup, ceramic, London & North Eastern Railway, white with dark blue band with blue LNER monogram

Ceramic cup, London & North Eastern Railway

Passenger Comforts

1924

British Thomson-Houston triode valve

Radio Communication

1925

Cossor triode valve

Radio Communication

c. 1924

Metropolitan-Vickers thermionic triode valve

Radio Communication

1925

Marconi thermionic triode valve

Radio Communication

1925

Marconi thermionic triode valve

Radio Communication

1923

EKCO H.T. Unit Radio

Radio Communication

1925

Marconi Osram thermionic triode valve

Radio Communication

1925

thermionic valve - valve,triode

Electronic Components

1925

Medium type self aligning ball journal bearing in

Mechanical Power Transmission

1925

Marconi Osram thermionic triode valve

Radio Communication

1925

Photograph of engravings of Morland's multiplying

Mathematics

1925

Photogaphic print and diagram showing the compound photo-electric effect in krypton, produced by X-rays of 90 kV

Nuclear Physics

1925

Microscope Objective

Scientific Instruments & Research

1925

Microphotograph of Niepce

Photographs

1925
Printed leaflet for Illingworth's gaslight paper.

Leaflet For Illingworth's Gaslight Paper

Photographic Technology

1924
One packet of Illingworth's Evitone Self Toning Paper 'Special Exhibition Sample', 3 1/2 x 2 1/2 inch. sealed.

Illingworth's Evitone Self Tanning Paper

Photographic Technology

1924
Wellcome diary for 1924, published by Burroughs Wellcome & Co., London. 95 page diary and negative index. Pencil missing.

Wellcome diary for 1924

Printed Materials & Ephemera

1924
Packet of Illingworth's slow gas developer, wrapped in silver foil pactek and printed paper wrapper.

Illingworth's Slow Gas Developer

Photographic Technology

1924
Theodolite, produced by Troughton & Simms, Great Western Railway, engraved GWR Divisional Engineers' Office, Gloucester no. 12, with box, tripod and two eye-pieces, repaired 1923.

Theodolite, Great Western Railway

Tools of the Trade & Personal Accessories

1923 (repaired)

Substantive Union Dyes on Cloth, LB Holliday, 1924

Industrial Chemistry

1924