Title
Barnard's co-ordinate spiral slide rule
Catalog Number
B240.82
Type
Physical object
Description
Cylindrical slide rule similar to Fuller's Rule. "BRITISH MADE" is embossed into the edge of the wooden disc nearest the handle.
Date
1925
Manufacturer
Stanley, London
Place Manufactured
England
Identifying Numbers
Other number |
25 |
Date code: at base of fixed brass cursor |
Serial number |
72 |
At base of fixed brass cursor |
Dimensions
3 1/2 x 3 1/2 x 14 in.
Category
Pre-computer/slide rule
Collection Title
Gwen Bell artifact and book collection
Series Title
Pre-computing artifacts