A full service instrument shop specializing in marine compasses, weather instruments, spotting scopes, binoculars, telescopes, clocks, barometers, custom weather stations and tripods. Our service department is unmatched in the fields of compass repair, clock and barometer repair. Online orders over $300 shipped UPS Ground free of charge (in the contiguous continental US only).


Click to enlargeSerial Number Log

Each compass manufactured by E.S. Ritchie was serial numbered and the numbers were all logged into the serial number record books. These books are still in existance at E.S. Ritchie. This picture of a page in the log shows the record of this 9" compass #41383 which was sold April 5th 1913 to H.D. Edwards & Co. The records also show that it was repaired for the Upson Walton Co. on Sept. 27 1915.


41383