Arca Swiss Monoball B1 back a few marks on the

a few marks on the interior materials from stickers (since removed)

the 1957 Nikon SP

and believe it or not

This is the thing you need

Please check your camera's instruction manual for compatibility

Arca Swiss Monoball B1 back a few marks on theThe Arca Swiss Monoball B1 is a heavy duty ball head suitable for well, anything that weighs less than 40kg. A solidly made, all metal ball head with a uniquely designed elliptical ball that naturally increases tension as the ball goes off axis to help you keep positioning control with heavy gear. Again, 40kg. The head is in excellent condition overall, with minor wear including a couple of corner dings on the QR clamp. Includes a genuine Arca Swiss