Also seen on the Internets from certified very smart people when it comes to gun laws:
The Original 1934 NFA Banned ALL Handguns, Semi-Autos & Mags over 12 Rds. Had NRA Been “No Compromise” We Would Have Lost it All.
I wasn’t even alive then, and my Grandpop was just 14, but I know from my own research this is true. We got AOWs because they were originally meant to apply to handguns, and they were carved out of it at the last minute very carelessly. The original definition of a machine gun was any firearm which could fire more than 12 rounds without reloading.