Weston standard cell (cadmium cell) marked ICST R.C.S. Phys. Lab. 1383 Weston standard cell 1900-1949
Weston standard cell type D-402-A serial no.154508, by Muirhead and Co. Ltd. Weston standard cell type D-402-A serial no.154508 1950
Carhart standard cell; model no 4296. Brass cylinder with base plate, four terminals on top with thermometer. Manufactured by Nalder Brothers and Company Carhart standard cell; model no 4296. Brass cylinder with base plate
Phase II standard cell Weston type 1149, made by H. Tinsley & Co., London (UK), circa 1935. no 109157. Marked in black paint "54 EE 1331B". Part of the equipment used by the Metrology Department at UMIST. Standard cell Weston type 1149
Early standard cell no. 13,369, made by Muirhead & Co., Westminster (UK). Marked in white paint "S.282". Part of the equipment used by the Metrology Department at UMIST. Early standard cell no. 13
Weston standard cell type D-550-A, serial no.310439, by Muirhead Weston standard cell type D-550-A 1960
Weston standard cell (cadmium cell) serial no. 11490 by Griffin & Tatlock Limited, London Weston standard cell (cadmium cell) serial no. 11490 by Griffin & Tatlock Limited 1926-1954