Antonelli is a player I collect because he was my father's favorite player when he was growing up, particularly when Antonelli pitched for the New York, later San Francisco, Giants. He's not too difficult to collect given his lack of fame, despite his excellent career - and because he played in a era in which he'd get one, maybe two cards a year, and then a few sprinkled regional/food-issued cards. This one is a 1953 Johnston Cookies Card from when Antonelli was on the Milwaukee Braves. Johnston Cookies made a 25-card set of that year's Braves. One of them is a Warren Spahn. The following year, Johnston made another Braves set - this time with a Hank Aaron.
I recently gathered that there's something called a "Topps Living" set that's an online-only order thing that Topps does. They do a bunch of this kind of malarky these days, and why not, right? People like me are ready and willing to plunk down a few dollars for our guys, like this new Jo Adell card that just arrived in the mail yesterday.