I do see someone on ebay selling a "factory sealed" set of those 24 PP inserts, in a clear polybag. If that was the original packaging format, it might have been where the "jumbo" moniker came from - since it was a thick pack of standard-sized cards. The other retail version of the '94 CPP cards came in long packs, holding 9 cards placed in a folded Classic-branded 9-pocket page. That release had either an Ice Ambassador or the ROY insert as one-per-page bonuses, and also a chance at the Alexei Yashin SN500 autograph (the one with the yellow patterned background). Those Radek Bonk box-bottom cards were on the hobby release (i.e. the 36-pack, 10-card/pack) boxes, and there may be five of those to coincide with his 5-card subset in the base set.