The product is a vintage postcard featuring an aerial view of Lake Merritt in Oakland, California. Published by Mike Roberts Studio, the postcard showcases a photochrome print of the lake from the era of 1939 to the present. Measuring at a standard size of 5.5 x 3.5 inches, this printed lithograph postcard is a unique collectible with a divided back and chrome finish, reflecting the theme of cities and towns in North America.