If you looked at my Yount Collection page you'll see 99% of the list is baseball cards. But I do have a small collection of Magazines that Robin has graced the cover on and it's an area I really want to expand. Robin has been featured on the front of Beckett two times, although it might be more it's just two times I know of. The second time was in 1992 on issue #90.
I ended up picking this up for a whole 50 cents plus shipping, off of eBay. It's wasn't advertised as mint and the seller sure didn't package it to keep it pristine, but it's a very clean, attractive and readable copy.
Let's see what Robin's rookie card was going for back in 1990.