Vintage Postcards. Set of 5 Mainzer Cats/Dogs

From the 1940s through the 1960s, the Alfred Mainzer Company of Long Island City, NY published a series of linen and photochrome humorous cat postcards illustrated by Eugen Hartung (or Hurtong) (1897-1973), sometimes referred to as "Mainzer Cats". The cards of this series were first printed by Max Kunzli of Switzerland. Later cards were printed in halftone lithography in a variety of countries, including Belgium, Turkey, Thailand, and Spain. 3.5”x5.5” Perforated edges. Pristine condition.