Vintage John W. Schaum Piano Course 4 books The Red, Blue, Purple, Violet

Vintage John W. Schaum Piano Course Books. Copyright 1945 by Belwin, Inc. New York. They are The Red Book “A”, The Blue Book “B”, The Purple Book “C”, The Violet Book “E”. They were used for lessons in 1960 and have been kept in a box since then. There is some pencil writing by the piano teacher on a few pages. The Purple Book’s binding is torn.