33 View-Master Complete Reel Set
1949 - vintage
The 231 stereo photographs were prepared by or under directions of William B. Gruber, each representing a species. The author's purpose, he says in the foreword, is to answer the "What is it?" question of both the amateur and professional finder of Mushrooms.
Decades later incomplete sets were remaindered. Offered here is the complete set of all 33 reels.
NOTE: There was a profuse accompanying book published concurrently - a detailed image by image, mushroom by mushroom description of edibility, habitat, technical description, general discussion. 626 pages, hardbound book by Dr. Alexander H. Smith.
Even more scarce than the reels, an original edition (1949) is being offered here in a separate listing