I'd like to know in what year H&B started putting MADE IN U.S.A. in the center label. I know that 1921 is the generally accepted date. However, I also know that some sources say that it's as early as !916. Can someone please tell me if it's possible that 1916 is the real date. Are there any known 1916-20 bats with MADE IN U.S.A.? I'd appreciate your input. Thanks.