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
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.