View Single Post
  #2  
Old 12-06-2018, 03:43 PM
rrussell1962
Registered User

rrussell1962 is offline
 
Join Date: May 2014
Location: Brisbane
Posts: 401
I believe V in a circle was a mark Vixen used on their eyepieces and T in a circle was used by Towa. No idea about the R in a circle though.
Reply With Quote