Lot 30841 – 1880 2½ ch (PC10), six pages with eighteen cards, a specialized group

1880 2½ ch (PC10), six pages with eighteen cards, a specialized group with observations about the known plate flaws and usages, including registered card to London with 14ch uprating, card to Paris with 7½ch uprating with a bisect 2ch value, and a card from Teheran via Rescht, Baku and Enzeli to Paris; a unique range with specialized information and a spectacular bisect uprating.