Wanted 1 1/8 Headset - red or blue or black - Nice but not CK

[bikeworkshop]

Here's a WTB in black!

https://bikerecyclery.com/nos-wtb-momentum-grease-guard-headset-1-1-8-threadless-black-near-mint/

You can see its been fitted...
If that's "near mint", then what's "used" look like?
Perhaps NOS refers to the nitrous oxide feed for the rider?

 

[Betsy]

There's a packet of Polo's just out of shot