4D Time Lock by Buckminster Fuller, originally privately published in 1928, Chicago, Illinois; 200 copies. This edition was published by Biotechnic Press, Lama Foundation, Albuquerque, New Mexico (1,000 copy edition).
The book was written by Fuller in 1928, and is about housing and our society. It consists of an essay, a patent with drawings, letters to and from Fuller and more drawings.
c1929, 1970. c1972, paperback.
USED, RARE, slight damage on outer leaf, but in good condition.