A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2017 May 11, 08:55 -0700
This looks to be the same sextant as a USSR SNO-T. Best luck for parts would be on E-bay. Look for a complete horizon mirror with frame. Read up on the Bill Morris blog for this particular sextant. There is a trick to the collared adjustment nuts to prevent stripping and damage.