Huge Darlot Petzval 5X7 8X10 11" F3.5 brass lens with flange and hood
Huge magic lantern lens - fixed aperture at ~F3.5.
Focal length is approximately 11".
Total length of lens is around 8" and glass diameter is 3".
Will cover 8X10 (but will clip the corners at infinity).
Glass generally clean, though does show some cleaning marks and other non-image-affecting artifacts.
Includes mounting flange.