Copy of documentation of Agnes Lister
1927
Photograph of drawing of John Lister
1927
Copy of documentation electing Joseph Lister to Vaud Society of Medecine at Lausanne
1927
14 display labels relating to items owned by Sir J.G.A. Critchett
1925-1930
Creed No. 11 Morse Automatic Transmitter, 1925
1925
Thermos Flask with fluted cylindrical body
1925-1930
Struycken monochord (cased) made by H. Pfau of Berlin circa 1930
1930
Megger earth resistance tester
1930
McVitie Weston valve collection, BTH Tungar valve
1930
McVitie Weston valve collection, Cunningham valve, type CX 381
1928
McVitie Weston valve collection, Western Electric valve, type 216A
circa 1924
McVitie Weston valve collection, Western Electric valve, type VT1
1924
McVitie Weston valve collection, Cosmos valve, type SP 41/U
1927
McVitie Weston valve collection, Mullard valve, type DU/40
circa 1928
McVitie Weston valve collection, Osram valve, type P625
1928
McVitie Weston valve collection, Burndept cold-cathode Ethotron valve
1927
McVitie Weston valve collection, Ediswan valve
circa 1929
Wade Bequest collection of valves: minitaure Weco radio valve
1926
Escapement pallet frame from the English Reifler escapement astronomical clock designed by E. T. Cottingham
1923-1925
Battery box from the English Reifler escapement astronomical clock designed by E. T. Cottingham
1923-1925
Hood hold down bracket from the English Reifler escapement astronomical clock designed by E. T. Cottingham
1923-1925
"Wig-wag" self winding wristwatch
1931
Model of Egyptian plough
1926
Graham-Farish "megite" resistor
1927
Bromide print of Burrough's adding and listing machine
1925
Packet of "Cortabs" for labelling valve leads
1927
Lissen wire-wound rheostat c.1927
1927
Blaise pascal
1925
Porcelain chemical bowl
1926-1927
Empty ethyl chloride bottle for use with local anaesthesia
1925-1930
Circular brass 2 scruple weight
1950-1930
Chemical retort
1926-1927
McVitie Weston valve collection, Burndept Supervalve valve, type H.L.425
1926
McVitie Weston valve collection, G.W.I. plateless valve valve, type G.1
1924
McVitie Weston valve collection, Autoveyors H.F. Relay valve
1925
McVitie Weston valve collection, Neutron valve
1925-1927
McVitie Weston valve collection, Neutron valve, type H.F.2
1928
McVitie Weston valve collection, N.L.V. Co. Ltd., Leo the Lion valve
circa 1929
McVitie Weston valve collection
1929
Camera from Kodak New for Old collection
1926
Photograph of the first two models of cyclotron bu
1930
Black and white photographic print showing original cyclotron built by Ernest Orlando Lawrence and Milton Stanley Livingston
1931
Late R.J. Rudd's copy of "Electric Clocks" by F. Hope-Jones
1931
Telescoped cable sample with engraved plate, London, around 1930
circa 1930
Photographic print of Roth's circular calculating
1925
Photograph of engraving
1925
Photograph of engraving of "Mathematical Ring"
1925
Two photographic prints of Pascal's calculating machine (6-figure) (a) lid closed; (b) lid opened
1925
Plaster cast replica of Ancient Egyptian weight
1931
Two photographic prints of Pascal's calculating machine (8-figure) (a) with lid of case closed; (b) lid opened
1925