Forerunner of lettercard, circa 1875, without value, printed in black on cream paper, very fine quality, rare! (Image)

Forerunner of lettercard, circa 1875, without value, printed in black on light green paper, WITH VARIETY: "Accent over the E of Epistolar", very fine quality, rare! (Image)

Forerunner of lettercard, circa 1875, without value, printed in black on light gray-blue paper, very fine quality, rare! (Image)

Forerunner of lettercard, circa 1875, without value, printed in black on greenish blue paper, very fine quality, rare! (Image)

Forerunner of lettercard, circa 1875, without value, printed in black on yellowish paper, fine quality, rare! (Image)

5c. Stationery envelope issued in 1867, with variety: OFFSET IMPRESSION OF THE FIGURE ON BACK, excellent quality, rare! (Image)

10c. Stationery envelope issued in 1867, with variety: OFFSET IMPRESSION OF THE FIGURE ON BACK, excellent quality, rare! (Image)

Ciardi ST 9, 5c. stationery envelope with dry impression on back: "Waterlow & Sons, Limited, London Wall, London" + very colorful additional postage (total 19c.), sent from Salto to Germany on 2/NO/1899, with transit mark of Montevideo and arrival backstamp of Bremen 25/NO, excellent quality. Ex-Loeb, its selling price was US$500 (Image)

Ciardi ST 9, 5c. stationery envelope with dry impression on back: "Waterlow & Sons, Limited, London Wall, London" + uprated with 10 stamps of ½ provisional (total 10c.), sent from Montevideo to Germany on 16/SE/1898, with arrival backstamp of Bremen 9/OC, excellent quality. Ex-Loeb, its selling price was US$500 (Image)

Ciardi TP4, 3c. postal card issued in 1880, sent from Montevideo to Gibraltar on 7/FE/1883, on front there is a transit mark of Lisboa 7/MAR, and arrival backstamp of 16/MAR, very rare. Ex-Loeb (its selling price was US$1,000) (Image)

Double postal card (with paid reply attached) of 2 + 2c. chesnut on blue stock card (Ciardi TP 22) sent from Montevideo to Austria on 14/OC/1884 with additional postage of 2c., and arrival back of Wien on front, rare! Ex-Loeb, its selling price was US$750 (Image)