In 1928 the Niagara Paper Mill Co., located in Lockport, New York, issued a set of calendar sheets with illustrations by W.A. Dwiggins. In design, though not in color, the illustrations were identical to the ones that Dwiggins had created for The Marchbanks Press three years earlier. 
Niagara Paper Mills calendar for April 1928. Illustration by W.A. Dwiggins.
How did the calendar sheets come about? They are not recorded in Dwiggins’ account books and I doubt that he had any …