Well I guess the OH on mine is the giveaway then. If it was made in 1976 that would be forty two years ago and sounds like he should know. Whoever made it did a pretty good job except for that mark, down to the green back. Plus, the known originals are embossed. But it’s the little details like the “O” versus the “OH” that’s the giveaway a lot of times. Thanks for the info Les.