discus\nchinese compass, arrows on circle point always in same direction\nl. vosburgh lyons\nturnabout\npaul curry\ncompas-sion\nhans e. trixer
1946
the phoenix 101-150 L. Vosburgh Lyons
Discus
Chinese compass, arrows on circle point always in same direction
crazy cardboards\nlines on paper, paper turned over lines change orientation, fake turnover\ndr. fred bertsche
1948
ireland's yearbooks Dr. Fred Bertsche
Crazy Cardboards
lines on paper, paper turned over lines change orientation, fake turnover
turnabout\narrows on squares turn so they always end up pointing in the same direction\npaul curry\ndiscus\nl. vosburgh lyons\ncompas-sion\nhans e. trixer
1974
paul curry presents Paul Curry
Turnabout
arrows on squares turn so they always end up pointing in the same direction
upside down\nchinese compass effect with the words "up" and "down", square plaque, several moves, see also p. 51 for additional ideas and remarks by martin gardner, dan garrett and sid lorraine, more ideas on p. 990 by lee fred\nsteve beam\nbased on bev bergeron's handling of milbourne christopher's "traffic sign"\nups and downs\njohn riggs\ndowner\nsteve beam\nsign of the times\njohn swomley\nthe trapdoor issue #1\nsteve beam\nthe upside down card trick\njoe anderson
1983
the trapdoor - volume one Steve Beam
Upside Down
Chinese compass effect with the words "up" and "down", square plaque, several moves, see also p. 51 for additional ideas and remarks by Martin Gardner, Dan Garrett and Sid Lorraine, more ideas on p. 990 by Lee Fred
Related to
based on Bev Bergeron's handling of Milbourne Christopher's "Traffic Sign"
the upside down card trick\nusing upside down to illustrate the triumph\njoe anderson\nupside down\nsteve beam
2012
the trapdoor - volume three Joe Anderson