I am not one to rock the boat, and perhaps this has been addressed before, but I think the date of issue for Overland Candy extended to at least 1939 (and likely 1940).
On the Oldcardboad site, the last bullet says: "1938 year of issue for set is based on card of Joe Gordon."
Well, here's the Gordon I own:
As you can see, the text notes Gordon's prowess at the plate, stating: "Last season he batted in 111 runs, including 28 home runs." He did this in 1939!!!
So, the issue date of Joe Gordon must have been after the 1939 season was finalized (unless Nostradomus was employed by Overland Candy Corp.). The use of the term "last season" implies that this was produced in 1940.
I'd be interested to see if the text on other player wrappers could help us narrow the gap for the range of dates this issue was actually distributed.
The Fabian Kowalik wrapper shown on Oldcardboard would almost certainly date the issue to 1936 or 1937. they talk about the Cubs wanting him, but he has a Philadelphia Phillies hat on (both are teams he played for in '36). He never played another Major League game after the 1936 season. He did toil in the Minor Leagues from '37-39 playin for Buffalo if the International League. Maybe his wrapper was issued at a later date too, although his stats certainly wouldn't support it!! Interestingly, Kowalik's wrapper has no ingredients listed, while Gordon does.
Anyone else have something they can contribute??