Conjuring Credits

The Origins of Wonder

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mental:bulldog_switch_clip [2016/05/24 17:53]
denisbehr reference with link
mental:bulldog_switch_clip [2017/06/28 16:58]
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-====== Bulldog Switch Clip ====== 
-This gimmick was invented by Bob Ostin and marketed by Davenports as "Bob Ostin's Dice Prediction," 1953. An ad appeared in //[[|Abracadabra]]//, Vol. 16 No. 408, 21. Nov. 1953, back cover. Tony Corinda also mentions Ostin's clip in //[[|Thirteen Steps to Mentalism]]//, 1958, p. 186. Ostin's clip was made with a rubber band or elastic. The model with a metal spring was developed and marketed in 1959 by Robert Nelson (sharing credit with Syd Bergson) under the name "Nelson's Mental-Gimic; see //[[|The Linking Ring]]//, Vol. 38 No. 12, Feb. 1959, p. 11.