Lot 30203 – 2pi black on brown & red-brown, normal and inverte

2pi black on brown & red-brown, normal and inverted block reports showing all “12 character types” in each block (total 24 stamps), shades ranging from brick red, red/brown to red-brown (mint and used), noted a corner piece (mint red/brown and a mint single – type 12) and the rarest shade brown mint stamp – Isfila No. 17 catalogue price as a single €5000, very rare group Provenance: Bosphoro