I had forgotten I had the Castles & Crusades Collector's Edition, otherwise known as the C&C White Box.
I guess I should do a "White Box Comparison" post or series of posts at some point. Original Dungeons & Dragons, Swords & Wizardry White Box, Delving Deeper and the Castles & Crusades Collector's Edition.
It is kinda neat with just the 4 core classes, 10 levels and 4 races. A whole game in just one box.