Lawrence Welk and his Champagne Music, Polkas, Decca DL 5139, 1949.
I put a full-size album behind it so you can see the size. This new vinyl stuff, “unbreakable,” was pretty cool! Not like those shellac 78s that break so easily. However, this is the same size as a 78, I guess they hadn’t yet decided to upgrade the to the 12″ LP.