Albania 1913 10pa Eagle Shqipenia Overprint Inverted

1913 Double-Headed Eagle & SHQIPENIA ovpt in black on Sultan Mohamed 1909-11 10pa green, one normal and one OVERPRINT INVERTED (SG 5 and 5var, Mi 5 and 5k). VF/U examples tied to piece by Elbasan Shqipenie cds. Scarce stamps, rare with the inverted overprint, fascinating issue. Photo-cert: Ceremuga. (cv£unlisted).