Lot 30144 – 1pi black on grey, on 1863 Tughra entire (Bulgaria

1pi black on grey, on 1863 Tughra entire (Bulgarian correspondence) dated 11 May 1863 from Sumnu (Kolarovgrad – Bulgaria) to Ruscuk (Rousse – Bulgaria) tied by a non-descript dotted blue cancellation, the entire has been folded through the stamp at some stage, scarce Note: The folded entire is written on embossed paper of G.P.W & Co SCHUMEN – raising the possibility that the “dotted cancellation” could be Sumnu (Kolarovgrad)