A full service instrument shop specializing in marine compasses, weather instruments, spotting scopes, binoculars, telescopes, clocks, barometers, custom weather stations. Our service department is unmatched in the fields of compass repair, clock and barometer repair.

This picture is of the serial number log at E.S. Ritchie & Sons factory, it clearly indicates the serial number of this compass #1231. There is no entry beside the serial number which may mean that the compass was one of a group of compasses made for the previous entry. 1231ser