I found the deleted Cruz campaign solicitation. It said that for $35 I could get my Deputy Delegate Card. Mygosh, some of the more brain-melded Cruz candidates might show up in Cleveland and claim they're "Deputy Delegates".
1940 model was the model featured in A Christmas Story This decoder had an eagle, shield and American flag on the front, with 1940, the skeleton keys and ROA on the back. Each was individualized with a unique serial number stamped on the back. The numbers and letters appeared on the edge of the wheel, rather than on the front or back.
More info on the decoder rings from 1935-1940:
http://www.achristmasstoryhouse.com/index.php/a-christmas-story-movie-facts/little-orphan-annie/