- Object number9557
- CreatorE. R. Watts & Son (Maker)
- DescriptionSet of six marker bolts in fitted case, with tommy key, for outside levelling
- Production date1910 - 1925
- Object name
- Material
- Dimensions
- bolt Length: 20.2 cm
head Diameter: 2.8 cm
key shaft Length: 8.2 cm
box Height: 6.8 cm
box Width: 20 cm
box Depth: 23 cm - Documentation
- InscriptionENGINEERS'/ AND/SURVEYORS'/ ERW&S/ TRADE MARK/ INSTRUMENTS/AND/SUPPLIES/ E. R. Watts & Son, Ltd/ 123 Camberwell Rd, London , England