1900 Exposition Universelle 63mm Bronze Medal awarded American Tool & Machine Co - Gem Unc KM.24 The 1899-O is the only

The 1899-O is the only officially recognized Micro-O variety and it is tough

After some digging

The 1927-S is the lowest mintage (by a large margin) Type-2 Standing Liberty quarter

Reverse: PAMP Suisse logo

1900 Exposition Universelle 63mm Bronze Medal awarded American Tool & Machine Co - Gem Unc KM.24 The 1899-O is the onlyThis stunning French medal was awarded to the American Tool and Machine Co. at the 1900 Exposition Universelle. Formed in 1845 as Geo. H. Fox & Co., they produced "Fox" lathes for brass turning and turret lathes. In 1864 or '65 the name changed to American Tool & Machine Co. About 1893 the company began manufacturing Valve Milling Machines. They lasted into the 1920s. During that time the company designed and built many specialty tools and machines