1923, gold, bronze and silver surcharges on various definitive stamps, complete set of six, including surcharge 2r+2r on 250r printed on thin paper, full OG, all with barest trace of hinge (most appearing NH), VF, C.v. $1,630, Est. $1,000-$1,200 (Image)

1923, gold surcharge 1r+1r on 10r brown and black, both ''1'' of ''1 Maya'' and ''1923'' are on the same vertical line (two stamps possible per sheet of 25), full OG, NH, VF, Est. $100-$130 (Image)

1923, gold surcharge 1r+1r on 10r brown and black, representing clear double red undercoat surcharge with overinked gold over, which is slightly misplaced, full OG, NH, VF and extremely rare, only one pane of 25 stamps with double surcharge were produced, N. Mandrovski certificate, Est. $2,500-$3,000 (Image)

1923, inverted silver surcharge 4r +4r on 5000r violet, nicely centered and very fresh color, full OG, previously hinged, VF and rare, expertized by Romeko and others, Raritan Stamps guarantee, Est. $3,500-$4,000 (Image)