sentences:  Earlier production pistols featured either milled straight line or cross-cut checkered slide serrations on the forward end of the slide, which were deleted in later years of production.Although the M1902 was originally intended for the military market, Colt was progressive enough to recognize that commercial merchandizing of the pistol also offered potential revenue and introduced a sporting version of the pistol with a few minor changes.Neither the Military or Sporting versions of the pistol had a manual safety.