- N° d'objet9558
- CréateurE. R. Watts & Son (Maker)
- Description45 degree set square in fitted case, for offsets for plumb lines
- Date1920 - 1925
- Nom d'objet
- Matériel
- Dimensions
- set square side Length: 61 cm
hypotenuse Length: 86.3 cm
case side Length: 72 cm
case side Length: 101.8 cm - Documentation
- E. R. Watts & Son, LondonERW&S in prismNumbered 1to 1.9 ft, marked in 1/10ths