1941 (ca.)
Written by Bob Hummer
Work of Bob Hummer
3 pages (Loose-leave collection), published by Berland Presents
No illustrations
Language: English
(2 entries)
Cover photograph
Creators Title Comments & References Page Categories
Bob Hummer Fantastric single card location, back turned for procedure, secret 10/9/8 count to find indicator card
Also published here 1
Bob Hummer And Now an Improvement single card location, back turned for procedure, variation in the secret 10/9/8 count to always get a matching card
Also published here 2
Data entered by Lorenz Schär.