I take you are in the USA Charlie without even looking at your profile
![Smile :-)](./images/smilies/icon_smile.gif)
We just don't get any of these lenses on the market in the UK. There are dozens of affordable superb old lenses on eBay USA and almost zero in the UK, not many in Europe. We also get some real old rubbish sold for stupid prices - anyone who was there AT THE TIME knows that Steinheil, Schacht, Isco, Enna, even Meyer and other German names produced some awful lenses yet you see them here with $400 price tags (they are mostly worth about $50 really).
Still, I remain curious about really retro glass. I have here, now, the Lomography Petzval lens. Richard K put up $300 as a kickstarter project to get one, and he has got a $1000 lens for his confidence. It is solid brass, beautifully made and boxed, and not anything like as soft as we expected. I'll be testing this on A7R soon (not touching it - need gloves and stuff before handling it to do the studio product shots).
I tried holding a TTH 108mm f/1.9 projection lens in front of the A7R. Big air space between lens and camera. Focused by moving it round. Works fine! Very distorted, flaring, soft shots but at the same time an amazingly sharp core image.
Back in the 1970s I experimented for magazine articles using my hand, tinfoil, ashtrays and other things to form images on film by viewing the effects through my SLR. Lensless images formed by light and physical apertures and reflection.
I've got the Skink Pinhole kit as well. I do not recommend it as the result just looks like a soft image but I have not yet tried the multiple pinhole aperture discs.
David