GJ.63/64 + 63A/64A, Ferrocarril de Buenos Aires al Pacífico, cmpl. set of 2 values in COMPLETE SHEETS of 100 stamps with white labels below, in both sheets some examples with complete Spicer Brothers wmk. Some perforations are a little separated and reinforced with hinge, few with tiny defects, the general quality is very fine, very rare, possibly unique! (Image)