- Numero oggetto9554
- CreatoreE. R. Watts & Son (Maker)
- DescrizioneInvar tape on wooden reel, marked 55 ft
- Data1920 - 1925
- Materiale
- Dimensioni
- 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