MEXICO - MEXICO Republic of Mexico (1821-1917). Test of 50 centavos "Caballito" by Charles Pillet, smooth edge, Special Strike (SP) 1907, Paris. Av. ESTADOS UNIDOS MEXICANOS. Arms of Mexico on a crown formed of two branches, the eagle accosted by 50 - C and ESSAI to the right. Rv. On a radiant sun, liberty mounted in amazon on a horse to the left, holding an oak branch and raising a torch, signature CH. PILLET and in the exergue (date), and ESSAI to the right. KM.Pn173 - PL-01; Silver - 30 mm - 6 h Top Pop: this is the only graded example! These trials of 50 centavos 1907 exist in smooth or raised edge, on matt or glossy blank (4 PCGS categories). PCGS SP62 (51896545). Special strike (SP) with smooth edge, on glossy blank. Only minimal hairlines and traces in the fields. Very rare. Superb at Fleur de coin. In 1907, President Porfirio Diaz decided to issue a commemorative coinage for the War of Independence of 1810. The Monnaie de Paris was approached and Charles Pillet carried out trials in 1907, 1908 and 1909. In the same year, the Mint received the coining equipment and the minting began in 1910.