- Back
-
Title: Navigator's dual face slide rule (B.R.L. Janus Model Ref No. [Go to resource]
Description: Navigator's dual face slide rule (B.R.L. Janus Model Ref No.N52) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule (navigation) Temporal: 1955 Source: Science Museum Creator: Blundell Rules Limited Identifier: 1955-177 Go to resource More Like this...
[Edit] - Back