This 20x138 rebated rim is one of the “1972 ECCA-D 1982” marked (mid-bullet) commemorative dummies. The (to me) more common one is blue and it has a standard rim diameter. This orange one has a 1.022” / 25.95mm rim.
So three (or so) questions;
What case type is it with this rim, and is it a valid / real / duplicate of a live / genuine round, as the blue one is.
What other colors did they make beside these two, and in what quantities were these made?
Thanks for any help.
Keep your powder dry