9555

E. R. Watts & Son (Maker)

Invar tape on wooden reel, marked 107/WG. Trade card stuck to reel

1920 - 1925

invar, Wood

ERW&S[in prsim]/ TRADE MARK/ E. R. Watts & Son/ Engineers' & Surveyors' Instruments and Materials/ 123 Camberwell Rd, London England107/WG