Two Kerr go along pamphlets. The small one has really nice color on front & back. Inside it says 1938, assuming it may be reprinted by the company after that date?
The large is 1954. The big one is set up like a text book. Each of 10 'lessons' actually have quiz questions at the end of each section.
The large is 1954. The big one is set up like a text book. Each of 10 'lessons' actually have quiz questions at the end of each section.