COMPLETE Set - “Audubon Nature Encyclopedia” sponsored by the National Audubon Society—12 volume set. First printing (1964/65); published by Curtis Publishing Company. Hard cover and illustrated (color and black & white).
I am not a book collector—I’d call these good condition with some staining/yellowing, creases, writing, etc. consistent with age and use. Please see my other listings for more vintage books and other vintage items.