COLOMBIA. Silver 1/2 Decimo Essai (Pattern), 1873. Medellin Mint. PCGS SPECIMEN-63 Gold Shield.Restrepo-P23. Struck as an obverse trial strike with a reverse that reads 1/2 DECIMOS R in retrograde. The obverse is bold struck and attractive with some reflectivity in the fields. Several major die cracks appear on the reverse.Ex: Baldwins (5/1994) Lot 399.