Plug-In Pattern Resistance Box with Constantan Coils, by W. G. Pye & Co., Cambridge, Probably 1920s

Subject: Electrical generation, storage & demonstration
Item type: Object
Makers: W.G.Pye & Co.
Primary inscriptions: No 11.830 CONSTANTAN COILS / W.G. PYE & Co CAMBRIDGE ENG.'
Other inscriptions: Additional plaque reading 'M.R.C.9' [probably Medical Research Council]. "Sherrington" strong candidate
Physical material: Wood; Ebonite?; copper alloy
Dimensions: Height: 120mm Width: 294mm Depth: 94mm Weight: 2.05kg
Inventory No: 10837

Description

"Resistance box with wooden base and ebonite? top with 17 ebonite? terminals and two copper alloy screw knobs.

Constantan is the alloy from which the wire is made."