- Objektnummer9554
- OphavE. R. Watts & Son (Maker)
- BeskrivelseInvar tape on wooden reel, marked 55 ft
- Produktionsdato1920 - 1925
- Materiale
- Mål
- reel Diameter: 46.7 cm
reel Height: 3.1 cm - Documentation
- ERW&S[in prism]/ TRADE MARK/ E. R. Watts & Son/ Engineers' & Surveyors' Instruments & Materials/ 123 Camberwell Rd, London England55-0ft