Scientific American. The Magazine of Today and Tomorrow. May 1927.
New York. Scientific American Publishing Company. 05- 1927. Volume 136, Number 5. Complete May 1927 issue of magazine, 297-368pp, 13 3/4 x 10 3/4 inches, color pictorial paper covers as issued. Vertical subscription crease to magazine, discoloration and multiple short tears to covers, 1 - 2 1/2 inch splits to.....