Robert K. Haas, Inc., Publishers (formerly Little Leather Library Corporation), New York, N.Y.
Books measure 4 inches in height x 3 inches across.
They all have been 85-95 pages.
Condition on all is age-related. There may be some rough, ragged cover edges; marks / creases on the cover; minimal amounts of dog-ear pages / pages with small tears or rips / marks. In keeping with the age of these books, pages are yellowing. Any other defects are noted next to the title.