This lens works great, is in good condition, and is super optically. The lens speed is great for wet-plate collodion photography. I have photographed with the lens. But, I'm selling it because I don't use it, due to preference of other Petzval lenses for my photography.
The lens does include the mounting flange. In the photos below the lens is shown mounted on a 6x6 lensboard with spacers to fit on a Kodak 2D with a Packard shutter mounted inside. The spacers hold the lens forward so that the rear bezel is in front of the Packard shutter. The lensboard and spacers are made out of plywood and are glued and screwed. The cylindrical plywood spacers are covered with a "Faux Vinyl Leather". Glad to include this lensboard with if the purchaser will use it.
If you want to learn more about this history of the lens, check out http://www.antiquecameras.net/softfocuslenses.html, which is a great website and is a tremendous help to my learning about soft focus lenses.
Price: $3,000 plus shipping