Colt, Model 1903, 0.380, Serial 15097
I am new to computers. But have been around guns since I was boy more than 40 years ago. At that time, my father gave me Colt with these markings "Colt, Model 1903, 0.380, Serial 15097". Can anyone determine the exact age? And if so, what reference guides are avaliable to do so?