"D&D Supplement II: Blackmoor": TSR, 1975.

[Big Mac]

This book, and Suppliment I: Greyhawk, remind me of the way that WotC later did the same mixing of core rules and setting in the 3e PHB. That has the "Greyhawk-lite" thing going on.

Would you say this is an OD&D version of "Blackmoor-lite"?

Hmmm...not really sure what you mean. Supplement I had very little to do with Greyhawk, other than the name. Blackmoor was the first supplement that had much in the way of setting material published at all.

Do you own the 3rd edition D&D PHB? I'm referring to the way that that book uses a very small number of Greyhawk elements (with the 3e deities being the GH-lite element that stands out the most).