Savage made more than a quarter-million pocket pistols in .32 and .380 caliber, but never commercially marketed a .25ACP design. They did design such a "baby" pistol, though, beginning in about 1912. Despite a significant tooling investment, only 40 were ever made (perhaps because they could not be made cost-competitive with other competing guns). The 40 that were made were in two distinct groups. The first 20 (which all have "M" suffix serial numbers starting at 1000) has wide slide serrations typical of standard early Savages. The second 20 have the narrow serration that were used on late Savages (and these second 20 also lack any slide legend markings).