Hi Ken, you have an early wheel which was born the lighter color.
My original is G 3 1968 too, but with a 122 in the circle, and my car is a Nov. 19 1968 build.
If you decide to get a date code correct later wheel please keep me in mind to buy your early wheel since mine is damaged.
I haven't seen another one with my date code for sale.
I have a spare wheel that's even earlier, but it has the glue in rim blow switch which is a nightmare to remove.
I don't know when Ford stopped doing that, but my G 3 1968 wheel was not that way.
I changed it's rim blow over 30 years ago with no problems pulling it out.