Large 9-inch hand forged artisan hammered copper bowl by Old Mission Kopperkraft (OMKK), San Francisco, circa 1922–1925 — one of the rarest and most collectible names in American Arts and Crafts metalwork, active for only three years before the firm closed.

The bowl presents a wide, shallow oblate form with a gently rounded rim and a low footed base, standing approximately 3 inches high. The entire exterior surface carries dense, even peen work in the characteristic OMKK style, with incised banding at the shoulder transition. 
The interior retains a rich, dark original patina with warm copper tones showing through. The base bears two impressed stamps: the iconic Mission Dolores building mark reading OLD MISSION KOPPERKRAFT / SAN FRANCISCO, and the secondary arm-and-mallet maker’s mark reading MADE BY HAND — confirming production under Fred Brosi’s direct supervision.

Material: Copper
Style: American Arts and Crafts / Mission
Maker: Old Mission Kopperkraft (OMKK), Fred Brosi, San Francisco
Period: Circa 1922–1925
Size: 9 inches diameter x 3 inches high
Condition: beautiful, original patina and condition shows slight abrasion on base. 

Carefully packed and ships within 1 business day upon receipt of payment.