Hi Ryan,
Of course it is 1" as the original Yo Eddy fork. I can't find any difference from the original fork.
I'm not sure when they switched over on Yo's, but the first "Yo Eddy" forks used larger 1-1/8" blades, which were quite stout.
Somewhere along the line the Yo legs shrunk to 1". 10th Anniv. was the first appearance of the 1" blades in 1992 - the Yo's maybe went to 1" a few years after (between 93 and 94 according to MOMBAT).
Anyway, your fork looks very nice. I'm impressed with how he did the scallops at the bottom and those dropouts are neat. You going to paint it pink? That's be my vote.
Ryan