Vintage Praezision Kugelgelenk Modell S2, medium size tripod ball head.
This model is the next size up from the mini ball head.
Top disc is a standard 1/4"-20 thread with soft felt cushion pad.
Base mount is a standard 1/4"-20 thread.
Lockable pivot joint head, all metal design.
3" inches high, 1-1/4" inch diameter base.
Weighs just under 5oz.
Comes with original STUDIOPHOT distributor box.
Made in Germany.