I was able to add both of the 1972 OPC cards recently.
the base card. It's identical to the Topps version. The back is bilingual.
My card was a bit off-centered, but that's ok with me.
He also had an In Action card.
taking a swing at Candlestick Park.
The back puzzled me, though. Take a look....
....No French! I wonder why? Obviously, there is a lot of text there, and to put both languages on the card would not be easy. The font would have to be pretty small. I assumed that OPC didn't have any choice, though.
Well, I have a choice and I choose to go bilingual.
The only problem---my two years of high school French were a long time ago. I relied on Google Translate, and I have no idea how accurate this is. Anyone parlez vous francais that can help?