On Jan 4, 1847 Samuel Colt accepted an order for 1,000 revolvers from the Texas Rangers. Interesting article not only about the gun but about Colt as a businessman.
https://www.smithsonianmag.com/smar...-shop-and-said-make-me-six-shooter-180961621/
https://www.smithsonianmag.com/smar...-shop-and-said-make-me-six-shooter-180961621/