F.39 Data Sheet MJS-p-0047

Davies, Routledge Engineer, c.1840

Serial Number or Date Stamp:

Country: UK Primary construction material: wd Case included?: no

General Description: Early linear Engineer’s slide rule

Length of 1 decade = 11 in, and overall scale length = 11 in. The largest physical dimension is 12 in.

Front Scales: A [ B B ] D

Back Scales: in

Notes: Maker is T. Davies, Gravel Lane, Southwark; references to pre-imperial units

References: http://www.astragalpress.com/Peter_Hopp.htm

Date Acquired: 12/09/2018