Large green plate by Karl Martz, 1937.
16-16.5 inches (41 cm) in diameter.

This plate was acquired in the Southwestern USA (Tuscon, Arizona or Las Vegas, Nevada) by Maureen Falk, who generously returned it to the descendents of Karl Martz in 2013. It can be seen in these 1938 photos of the Pink House showroom: View 4 and View 5