The back of the slide rule: "Slater from top to bottom. Sold and stocked by Norhtern Electric Company Limited." Name etched on back: H.A. Eshton, also on case. The object consists of slide rule and case.
Manufacturer
Blundell Rules Ltd.
Place Manufactured
U.K.
Identifying Numbers
Model number
604 Electro
Other number
P166
Donor's ID number for rule
Dimensions
overall: 1/4 in x 6 7/8 in x 2 in; overall: 3/8 in x 6 1/4 in x 1 1/4 in
