74 GTO steering wheel options

I have a 74, with two options for steering wheels on the order sheet. It looks like option H30 is for a Custom Cushion steering wheel and H31 is for the Custom Sport steering wheel.

Mine is the Z174 Custom, showing the H30 as standard, and the factory invoice provided from PHS doesn't indicate different.

The problem is that I don't know what the H30 or H31 look like and mine has a TransAm wheel added to it.

Can someone explain the difference, or email me pictures of each, so I know what I am looking for to do an original restore?

Sorry, the options are actually N30 and N31. My FAX from the PHS is a bit unclear, but I found the N options at 74GTO.com from another build sheet.