Bought some forks and they came with two headsets.

The headset itself is unused but the crown race was fitted to the fork so it has some small marks from removal. 

Info from the Cane Creek site: 

.41mm angular contact bearings feature 36degree inner chamfer, 45degree outer (36/45)

.Directly compatible with 41mm head-tube and fits 42mm (Italian) head-tube with supplied 0.25mm shim

.Integrated (IS) assemblies feature chamfers molded inside the head-tube with no press-in cups

.9mm stack height (short) top cover