GJ.16c, 4R. green, VERY OILY IMPRESSION variety (transparent on back), very fine quality, spectacular! (Image)

GJ.17, 1P. blue, SHEET CORNER (position 10, with lines in top and right border), on fragment with double cancellation: illegible pen + rimless datestamp of Buenos Aires, excellent! (Image)

GJ.17a, 1P. blue with very notable complete DOUBLE IMPRESSION, excellent qulaity, very rare! (Image)

GJ.17a, 1P. blue with DOUBLE IMPRESSION (very notable in the bottom half of the stamp), very worn impression and completely illegible below, with DOUBLE cancellation: pen cancel of origin of San Nicolás, and arrival Montevideo datestamp (+100%). Pen cancels were made with a metal tip and agressive inks that eat away the paper (as in this stamp), which is normal and can be observed from the back of the stamp. Spectacular and very rare example, catalog value US$275+ (Image)

GJ.17b, 1P. blue with varieties: partial DOUBLE IMPRESSION (very notable at top left angle, double "1" and double period and P of PESO, etc.) and also "stone behind the head", with double cancellation: Thick pen mark and blue grid of Buenos Aires, VF quality! (Image)

GJ.17, 1P. dark blue with variety: "stone at left of the C of FRANCO", very lightly pen cancelled, VF quality, rare! (Image)

GJ.17, 1P. dark blue with variety: "flaw between second R and E of CORREOS", with receiving cancel of Montevideo (+100%), excellent quality! (Image)

GJ.17, 1P. azure, with variety "inner frame interrupted above the S of PESO", with ample margins and very fresh, excellent! (Image)

GJ.17A, 1P. MILKY BLUE, excellent quality! (Image)

GJ.20, 2P. blue ABSOLUTELY CLEAR impression, superb copy on fragment used in B.Aires, excellent! (Image)

GJ.21g, variety "Top right angle defective" (position 12), superb example on fragment used in Buenos Aires on 20/FE/1863 (Image)

GJ.21A, 1862 1P. ROSE CARMINE, with additional variety "1 without period" not yet catalogued, very fine quality, rare! (Image)