1883 (June 6), cover franked with 20pa black on rose horizontal pair, paying the 1pi foreign letter rate to Schumen, adhesives tied by blue Haskoy c.d.s., matching free strike at lower left, alongside Gaborovo c.d.s. transit (Jun 10), second Gabrovo backstamp (Jun 12), and Schumen c.d.s. receiver (Jun 13), somewhat roughly opened through back flap, else a fine and unusual cover, the adhesives being cancelled by a c.d.s., contrary to regulations, and both the Haskoy and Gabrovo postmarks showing inverted day or year slugs.
