Posted By:
Julie Vognarculled entirely from "The Monster," Bill Heitman, 1980.
(p.15): The reason for the extreme scarcity of the Plank card, however is not so well known. (The story that the plate was damaged early in production) and disguarded... with a Plank now known in both the Series
of 150 and the Series of 350...seems doubtful....
(p.22) (Plank IS listed in both the 150 and 350 series, but NOT in the Sweet Caporal 350 series! Neither in the "25" nor the "30" factory designations.)
(p.13): As has already been said, Piedmont may have issued all of the various front designs and Old Mill would have issued the second largest group. None of the other brands come too close, although Sovereign, El Principe De Gales and Sweet Caporal could have issued all except Magie and the four Southern Leagues: South Atlantic, Southern, Texas and Virginia.
(pages are not numbered. I'm calling the front inside page #1. The way I read all this: There are no known Planks in the 350 Sweet Caporal series, factory 30. But there could be. This is all as of 1980.)