Amsterdam 1928 Olympic Games commemorative blue & white wall plate, factory mark for Petrus, Rogout & Co., Maastricht, featuring national & city arms,

Amsterdam 1928 Olympic Games commemorative blue & white wall plate, factory mark for Petrus, Rogout & Co., Maastricht, featuring national & city arms, Discoblus. Latin motto and inscribed OLYMPISCHE SPELEN, AMSTERDAM 1928, diameter 25.5cm., the reverse drilled & wired for wall hanging