Telephone crossbar switch, Swedish Ericsson, 1921
1921
Novelty model
1955; 1830
"Swiftsure" copper posser by the British Vacuum Wsher Co. of Islington
1921
Replica of the first Morse telegraph, 1835
1934
Gold amulet in the form of a cobra
2000-100 BCE
Working Model locomotive
1922
Replica of Liverpool & Manchester Railway 1st Class carriage 'Traveller'
1930 (replica); 1834 (original)
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Freud electronic laughing ball
1990-96
Popular Wireless no. 1 vol. 1, 1922
1922
Card of Authority to use portable receiver, 1922
1922
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Ora wireless receiving triode, 1921
1921
Model of the "Planet" Locomotive
1830 (original); 1967 (model)
Neolithic flint scraper
4000-2001 BCE
Glass-stoppered bottle containing uranium
1801-1892 (prepared); 1946 (element replaced)
Images showing West Indian migrants arriving at London’s Waterloo station in May 1962
1962-05
Cunningham triode type C300 1921
1921
Clinical thermometer
1970-1900
Axe head shaped flint
10000-5000 BCE
Radio Frequency Transformer
circa 1922
Cunningham triode type C301
1921
McVitie Weston valve collection
1921
Dummy 66-volt dry battery
1922
'Cirscale' moving iron ammeter
1922
Microscope, Jackson model; made by Geo Jackson
before 1921
Assmann psychrometer
1922
Every ready battery, 1917
1917
Monocular microscope no.30686 by F. Koristka
1921
Two photographs of alchemical engravings
1921
Two photogaphic prints, showing the collision of an alpha-ray with an oxygen atom in an argon-filled expansion chamber
1922
Circular bronze medal commemorates 100th convention of German Leipzig 1922
1922
Print, etching of Night scene in European city
1940-1050
Fabroil Silent Pinion type B, gear wheel
1922
Flint hand tool
8500-2000 BCE
Spindle with Whorl, Stone Age
5000-500 BCE
Red granite drill core
2686-2613 BCE
Diorama of Grimes Graves Flint Mine, 2000 BC
2000 BCE
Single helical spiral bevel wheel and pinion
circa 1922
Small Stone Age
8500-2000 BCE
Flint hand tool, flake type, Stone Age.
8500-2000 BCE
Flint hand tool, side-scraper, made in the Stone Age.
8500-2000 BCE
Small Stone Age
8500-2000 BCE
Flint hand tool, side-scraper, made in the Stone Age.
8500-2000 BCE
Fabroil A Silent Pinion, 4" diameter x 1 1/2" wide
1922
Roller bearing type N.L. 30; 1921 branded Norma
1921
Flint hand tool, core-type, Stone Age.
8500-2000 BCE
Flint hand tool
8500-2000 BCE
Flint hand tool
8500-2000 BCE
Self-aligning double row ball bearing
1921