JACKLEG1

I have some information on your Winchester Model 1873. From the serial number it was made in 1895 which would make it a 3rd model. Without a better, more complete, description, that is about all that I can tell you and I can't even guess at a value.
The same is true about your Colt Model 1902. Need to know if the slide is serrated on the front or if it is serrated at the rear. The caliber is .38 Colt Rimless Smokeless. Do not try to fire the .38 Super in this pistol as this cartridge is to powerfull for the 1902 pistol.