Hughes Marine Bubble Sextant

The National Maritime Museum has in their collections a Marine version of the Aero Mk IX sextant.

The museum write up says it has a clockwork averager. I think not, but not having seen it in the flesh I only register a doubt for now. It appears to have a mechanical averager operated with a lever as the original Mk IX, There is a lever and possibly a reset knob on the back side. Although it looks obviously related to the Mk IX all the castings are completely different.

 

 

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