Not sure what to say. But as far as I know the Colt Automatic 45 came in 1911.
"
The
M1911 is a
single-action,
semiautomatic handgun chambered for the
.45 ACP cartridge. It was designed by
John Browning, and was the standard-issue
sidearm for the
United States Armed Forces from
1911 to
1985. It was widely used in
World War I,
World War II, the
Korean War and the
Vietnam War. Its formal designation as of 1940 was
Automatic Pistol, Caliber .45, M1911 for the original Model of 1911 or
Automatic Pistol, Caliber .45, M1911A1 for the M1911A1, adopted in 1924. The designation changed to
Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam era. In total, the United States procured around 2.7 million M1911 and M1911A1 pistols during its service life."
Maybe there were earler prototype guns? I thought the first automatic by Browning was a .32 in 1900.