The early version of the Leitz medium-sized ball head, KGOON. Only the part supporting the ball is chrome-plated, while the rest is finished with nickel plating. Both the male and female threads are large.
The medium-sized ball head was first introduced around 1936, but Leitz's nickel-plated ball heads are extremely rare, with the small-sized FIAKU being the only one occasionally found in nickel. This medium-sized KGOON ball head with nickel plating is highly rare. It makes a perfect companion for black & nickel A-type, DII, or DIII models.
There are small scratches and some areas where the chrome plating has worn off, but considering the manufacturing era, the condition is still quite good. The felt on the base is a recent replacement. All parts are functioning properly. It has a solid construction, allowing for precise locking with minimal effort. A rare item.
Reference: Leica Accessories Vol. 1, by Shinichi Nakamura, Asahi Sonorama, page 118.