[Wavytone]

As previously I'd suggest you head to CloudyNights for this as there are a LOT more users with "classic" scopes.
There is no reason why IIS should mirror established groups on CN when there is nothing to gain by doing so.

What qualifies as a "classic" scope is another matter.

1880 Thomas Cook 4.5" refractor on bronze clockwork mount ... definitely.
Anything brass that is a genuine antique pre 1920 - yes (not the fakes, which are many).
A 1960's Questar... yes.
Any Unitron/Polarex scopes - yes.

1970's Orange tube C8 - they were junk then and still are. "classic"... but still junk.
A 60mm Tasco from 1975 - fuggedaboudit, it was junk then and still is.

My Santel... borderline classic.