I have an unknown 2.6" secondary in a Novak holder that I would like to trade for a decent 3.1" secondary in a good holder that can be used with the spider that matches the Novak -- a 3/8ths inch shaft, I believe.
The secondary has a small water spot (1 mm?) that may be cleanable, as well as a couple of very fine cleaning sleeks. I do not know the manufacturer, but it came from a scope with a primary that was figured by D & G when they did such things.
I would like to trade, but am willing to sell if I get a decent offer. If a trade is offered, I will of course be willing to add some extra cash, or offer some accessory that may be of interest.
(The photo below is of a Novak holder that I googled [I don't have a digital camera], NOT the holder I am offering. Mine looks identical, but has a mirror in it.)