The good looking stock rims, right?
DID in an oval beside the tube valve.
Those rims have smoother sides.
I know to guys that have just restored 2 CB750's.
I understand why they re-chromed rims, fenders etc. New chrome look like stock nos parts polished and covered with clear coat.
I ordered new rims to my K6 1979/80. I got the later with D.I.D stamped on the sides together with size.