Last time, we talked about the diameter of vinyl records and how that number goes far beyond 7 and 12 inches. A hundred years ago, labels tried all sorts of sizes. We had 8 ½, 9, 11 ¾, 14, 16 and even 20 inches, making it all very silly for a while.
Fortunately by the time we got to WWI, clearer heads had prevailed and the world settled on 78 RPM 10-inch discs, which became the standard for the next forty years. It wasn’t until the late 40s that the 78 was pushed aside by the 33 1/3 12-inch album (introduced by Columbia Records in 1948) and 7-inch 45 RPM single (a creation of RCA in 1949). But that still didn’t settle the situation. More next time.