[Milsurplus] Repair source for military sextants???

[D C Macdonald]

I recently purchased a surplus military aircraft
Kollsman averaging bubble sextant.  It is in
good external shape, but unfortunately has
a problem that must be repaired before I can
use it.

Does anybody on this list have any idea as
to who or what company might still service
these?

I found one company that  USED  to do it
but their technician died six months ago.

Thanks in advance.


Mac, K2GKKK
Oklahoma City