Metal Rule

Metal Rule

Metal Rule
Science Museum Group
© The Board of Trustees of the Science Musuem

6" metal rule used by S4445 BM Treacher, WRNS, 53 Audley Road, Ealing, W5

Details

Category:
Aeronautics
Object Number:
Y1989.52.10
type:
rule
credit:
Gift of Mrs. B.M. Greenhalgh