1927, Dr. Zamenhof, Creator of Esperanto, 14k yellow green and dark brown, printed on paper without watermark, perforation 10x10½, full OG, previously hinged, VF, N. Mandrovski certificate, Est. $150-$200

100.00

1927, Dr. Zamenhof, Creator of Esperanto, 14k yellow green and dark brown, vertical imperforated pair, nice margins all around, full OG, NH (bottom stamp) or LH, VF, C.v. $2,325 as singles, Est. $1,200-$1,800

800.00

1927, Dr. Zamenhof, Creator of Esperanto, 14k yellow green and dark brown, horizontal imperforated pair, enlarged margins and post office fresh, full OG, NH, VF and scarce, C.v. $2,750, Est. $1,500-$2,000