A full service instrument shop specializing in sales and service of marine compasses. Suppliers of genuine replacement parts for Danforth, Aquameter, Ritchie, Kelvin White, Dirigo and Star compasses
![](https://s.turbifycdn.com/aah/yhst-37093161787174/marine-compass-sale-19.gif) | ![](https://sep.turbifycdn.com/ca/Img/trans_1x1.gif) | ![](https://s.turbifycdn.com/aah/yhst-37093161787174/marine-compass-sale-20.gif)
![Click to enlarge](https://s.turbifycdn.com/aah/yhst-37093161787174/1231-serial-number-record-10.gif) ![](https://sep.turbifycdn.com/ca/Img/trans_1x1.gif) ![1231 Serial Number Record](https://s.turbifycdn.com/aah/yhst-37093161787174/1231-serial-number-record-11.gif)
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.
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