by gerrypocha » Tue Nov 02, 2010 1:26 am
Wow! there it is . thanks so much for that information kevin. It seems that these might have been transition pieces from the threadless- threaded era.! i guess these might have been self threading , (on a threadless pin ) ,much like some people have suggested the 143 double threaded were intended to be used. it seems that might be too old for a GNR marked insulator though. any comments on this. thanks again!