1920 (November 3), two high value 2nd Monogram surcharges 50r/1r and 100r/3.50r used on registered cover from Yerevan to Tiflis, postmarked ''5.11.20'' on arrival, repaired tear (not affecting stamps), collectible and scarce item, Est. $300-$350 (Image)

1920, Paris issue, Ararat Mountain, imperforate plate proof of 100r in red and black brown (issued colors), block of 25 with invalidated perforation, no gum as issued, VF and scarce multiple, Artar #609P, Est. $500- $600 (Image)

1921, First Constantinople issue, complete set of 15 imperforate plate proofs in issued colors, printed on glossy paper (proofs of 15,000r and 25,000r brown are not existing), no gum as produced, NH, VF and scarce, Est. $500-$600 (Image)

1921, First Constantinople issue, Fisherman 1000r blue green, left margin imperforate tete-beche block of 20 (10x2) with 22.5mm gutter in the middle, no bend or folds, perfect quality, full OG, NH, VF and scarce positional item, especially in premium quality, Est. $400-$600 (Image)

1922, red surcharge on Soviet issue 100,000 on 2000r black and gray, basic stamp has gray background strongly shifted to the top, full OG, previously hinged, VF and very unusual error, especially on surcharged stamp, C.v. $250 for a stamp without variety (Image)

1922, black surcharges on the First Constantinople issue, 2(k)/2r perf and imperf, 35(k)/20,000r, 50(k)/25,000r and 3 (k) on 3r, all are imperf, full OG, NH, VF, Rossica certificates are enclosed, C.v. $237.50 (Image)

1922, black surcharge 50k on imperforate 25,000r gray blue, vertical tete-beche pair with gutter in the middle, lightly folded along the gutter, nevertheless full OG, NH, VF and very rare, this positional piece is not mentioned in the in Cat., Est. $1,000-$1,500 (Image)

Collection. THE FIRST CONSTANTINOPLE ISSUE WITH LATER SURCHARGES: 1921-23, 126 mint perforated and imperforate stamps, including 52 reprints, singles and blocks of 4, 6 or 16, nice quality, full OG, mainly NH, F/VF, C.v. $2,300 (reprints not counted), Est. $600-$800 (Image)

Collection of Modern Issues. 1992-2003, 384 mint stamps, 62 miniature and 35 souvenir sheets, arranged on Scott album and stockpages, practically complete, including imperforate Chess and Tigran Petrosian sets in pairs and blocks of four, numerous miniature sheets, official and unofficial stamps in commemoration of Spitak Earthquake, as well as Nagorno-Karabakh stamps, including some bogus issues, full OG, NH, VF, C.v. $2,250 for listed items (Image)