AAC-12, PO box payment card of $12 (Posadas) (Image)

AAC-28, PO box payment card of $60 (Posadas), with additional postage of $60, punch holes (Image)

BEE-3, dispatch note of 80c. Plowman for parcel post of up to 3 kilos, used in Buenos Aires on 27/JA/1913 (Image)

CAP-8MU, 3+3c. lettersheet with paid reply, and "MUESTRA" ovpt., VF (Image)

CAP-9, 2c. lettersheet, used in Buenos Aires on 14/MAY/1889, several marks on front and back (Image)

CAP-19/20 + 22, cmpl. set of 3 values (Image)

CAP-20MU + 22MU, 3c. and 4c. lettersheet in greenish slate and grayish green, with "MUESTRA" ovpt., some are glued (Image)

CAP-25F, 3c. lettercard (view of San Martín statue on back) used in Buenos Aires on 2/JUN/1898, with typewritten text inside (invitation to a meeting of Club Rio-Platense) (Image)

CAP-26E, 4c. lettercard (view of Riachuelo river on back) (Image)

FAJ-1/4, unused wrappers, in general of VF quality (Image)

FAJ-3, 4c. wrapper, VF (Image)

FAJ-13/16, 4 values of the set (Image)

FAJ-14MU, 2c. wrapper with "MUESTRA" ovpt. (Image)

FAJ-18a, ½c. wrapper with MUESTRA overprint, with VARIETY (uncatalogued): "I" of "Impresos"fallen, along a normal wrapper for comparison, rare! (Image)

FAJ-18MU/20MU, cmpl. set of 3 values with "MUESTRA" ovpt. (Image)

FAJ-39/42, cmpl. set of 4 values, VF (Image)

FAJ-62A + 62B, 1c. wrapper, typography + lithography (Image)

FAJ-63A + 63B, 2c. wrapper, typography + lithography (Image)

30 Unused wrappers, most of fine to VF quality (Image)

About 60 used wrappers, most of fine quality (Image)

SOB-1, 5c, first stationery envelope (Image)

SOB-3 + 6 + 8, the 3 different values of the set (Image)

SOB-5, 8c. envelope, wove paper, sent from Córdoba to Montevideo on 8/MAR/1883, with Buenos Aires transit mark, and arrival backstamp, rare! (Image)

SOB-10MU, 12c. envelope with "MUESTRA" ovpt., VF (Image)

SOB-16 + 20 + 23, the 3 different values of the set (Image)