I'm scratching my head over the same thing, Brian. I've located several different checklists and resources and I'm finding that the numbers vary. Some show a Basic set with 208, while PSA recognizes only 206. Who's right, I wonder?
As for your collection, you've got some impressive prewar goodies in there. My Cracker Jack set is coming along...
http://www.psacard.com/PSASETREGISTR...t.aspx?s=74819