1917 San Martin: Stockbook with study of papers and gums, including many of the low values, different printings, colors, papers, etc., used and mint (most MNH), excellent quality! (Image)

COMMERCIAL PERFINS: More than 110 stamps with perfins of varied companies, virgin lot (completely unchecked), in general the stamps are of fine quality (some have defects, but we did not remove them in case their perfins are rare or unknown). Very interesting lot for the specialist, low start! (Image)

PRINTING VARIETIES: Stockcard with nice varieties, for example color lines or shifted colors, very attractive! (Image)

More than 60 covers with very thematic SLOGAN CANCELS, some are sold online at a retail value of between US$5 and 10, VF quality, good opportunity! (Image)