9548

E. R. Watts & Son (Maker)

{\rtf1\ansi\ansicpg1252\deff0\deflang2057{\fonttbl{\f0\fnil\fcharset0 Segoe UI;}} \viewkind4\uc1\pard\f0\fs18 Invar tape wound on wooden reel marked 69.5 ft\par }

1920 - 1925

invar, Wood

69-5 FTERW&S [in prism]/ TRADE MARK/ E. R. WATTS & SON/ Engineers and Surveyors' Instrumennts and Materials/ 123 Camberwell Rd, London.