1919, the second issue, framed violet ''Z'' overprint (size 14mm) on 1r dark brown, pale brown and orange, imperforated block of four, top right stamp without overprint, full OG, previously hinged, VF

1920, the third issue, black monogram surcharge (15mm) 10r over black surcharge 20k on 14k blue and rose, full OG, LH, VF and very rare, since stamps of 20k/14k were not available for surcharge by Yerevan Post Office initially, they were supplied and overprinted in the middle of 1920, beginning of 1921, finally only a few sheets were produced, the stamp is not listed in Scott or Artar

1920, the fourth issue, black monogram surcharge 50r over inverted black ''Z'' overprint (6.5mm) on imperforated 1r in block of 25 with 3 ''V'' labels and block of 11 with 1 label, first one has top monogram presented on almost all stamps (folded along perforation), while second one practically has no traces of monogram, full OG, NH or with favor Yerevan cancel (affected 4 stamps of the 1st block), F/VF and scarce multiples, C.v. $1,395

1922, double black surcharge 75,000(r) on stamp of Soviet issue 3000r black and green, full OG, hinged, VF and very rare, only a handful of this variety exists, ex-R. Nagapetiants

1922, black or red surcharges on the first Constantinople issue, set of eight with short, thick numerals and six values with tall, thin numerals of surcharge, all with full OG, NH, F/VF, C.v. $738

1922, short thick black surcharge 2(k) on 2r gray, irregular imperforated at three sides block of 12 (3x3 and 3 at right with perforation 11½ at the bottom (a top part of a sheet imperforated vertically), full OG, NH, VF, C.v. $570++

1922, black surcharge 50k on imperforated 25,000r gray blue, vertical tete-beche pair with gutter in the middle, folded once between stamp and gutter, nevertheless full OG, NH, VF and extremely rare, this positional piece is not recorded in Specialized Cat.