Toyo-View Flat 158 x 158mm Lensboard for #3 Copal/Compur Shutters with Toyo View Cameras

Flat #3 shutter size Toyo "View" lensboard, 6.2" (158mm) square. Fits the 45C, 45G, 45GX, VX125 series and older Omega models. Typically used for lenses 240-800mm in Copal/Compur/Prontor #3 shutters.