Possible 1975 Round 3

Now I'm not sure that this is another wheel from when Wheel of Fortune premired in 1975. I made this based off of a 1975 B&W photo with Chuck Woolery and Susan Stafford with the round three wheel in the background. Some of the values may be wrong, and since it was a B&W photo, I can't even tell if any of the colors are right either. So like I said, this may not have been the wheel used in round three.

Even so, I read an article on Wikipedia which stated when the show premiered in 1975, $500 was top dollar value, $750 in round two, and $1000 in round three.