Pryor, William Clayton and Helen Sloman Pryor books & textbook
The dirigible book;: A photographic picture-book with a story,
Pryor, William Clayton and Helen Sloman Pryor
Harcourt, Brace & Company /1936T Hardcover
The Airplane Book. A Photographic Picture-Book with a Story
Pryor, William Clayton and Helen Sloman
Harcourt, Brace & Company /1935T Hardcover
Let's go to the Movies
PRYOR, William Clayton and Helen Sloman Pryor
Harcourt, Brace and Company /1939T Hardcover
