A twelve piece set of brass and steel drawing instruments with lift-out tray. Top tray includes: 6 1/2″ proportional dividers – with rack movement; 6 1/4″ compass with 5 interchangeable…

A very lovely velvet-lined mahogany case approximately 7 3/4″ long , 3 3/4″ wide and 1 1/4″ high. A silver name plate is noted on the lid. A lift out…

This unique pocket travel compass approximately 2 ‘ ‘ square in an oak box with a latching lid is in working condition. The compass needle locks in place when the…

This instrument was used to scale distances on aeronautical charts in the 1950’s.  It would also calculate air speeds based on miles as shown on the verso of the scale. …

The Star Finder scale comes with 7 individual clear plastic scales that fit over the accompanying star chart. Used by pilots in air navigation, the scale has a leather slip-jacket…