The obverse bears kneeling native American brave, peering into distance; behind, grain elevator, air plane, locomotive, powerline and smokestacks. Above, SURELY BUFFALO ADVANCES.
The reverse bears image of Buffalo City Hall. Above, BUFFALO CENTENNIAL; below, 1832 - 1932.
The Buffalo City Hall was completed just one year before the city's centennial. It is one of the largest and tallest municipal buildings in the United States and one of the tallest buildings in Western New York. It was designed by John Wade, chief architect, with the assistance of George Dietel. The friezes were sculpted by Albert Stewart and the sculpture executed by Rene Paul Chambellan. At a guess, one of the two also designed and modeled this medal but I can't be sure.
This medal measures 57mm (2 1/4in) in diameter.
References: Marqusee 16