1905ca. Envelope from Eyri-Dere in Bulgaria to Demsaadet, Istanbul, with 1905 20pa carmine pair tied by type C2 Eyri-Dere cds, arrival bs, roughly opened at left, a very rare cancel, with only a type C3 of Eyrie-Dere recorded by Coles & Walker in Book IV Addendum, this type being unrecorded; ex Dr. Wahby.