Since he began on a small scale before progressing to larger copper enamel paintings I think this is likely one of his early works in this medium. From the notations on the back I think that this picture was framed by the artist's studio. The 10.75" x 12.75" x 1.2 wood frame has gilt inner and outer edges surrounding a dark blue rectangle and enclosing a white fabric inner frame. The outer gilt edge has a chip near the upper left corner and the fabric of the inner frame is slightly foxed.
Since the frame was originally given a distressed look these defects detract less from it than one might expect and instead contribute to the intended impression of age. Max Karp created his highly prized enamel on copper pictures using copper plates and colored glass powders.This was a painstaking process which produce numerous pieces with imperfections which Karp would reject and destroy. Many of his pieces took 30 to 40 color firings to produce. The item "Original Enamel on Copper Signed Max Karp Painting Green Wing Teal Plate 6x8" is in sale since Sunday, April 7, 2019. This item is in the category "Art\Paintings". The seller is "peverell_books" and is located in Seattle, Washington. This item can be shipped to United States.