I have NOS ones for a 1970 Maverick, that I will be putting on my restored 72' Grabber, and they look just like the ones in this pic: (this is not my car in this pic by the way) And I like the 70's better than the stock ones in my 72' because they look more simple.
My factory ones are in bad shape. I got some billet ones that I may use. http://mmb.maverick.to/showthread.php?t=86775&highlight=knobs