„SAMAKOV: letter sheet (part on reverse missing) from the well-known correspondence to the Zahari of the Bulgarian church at Constantinople, franked with Tughra 2nd setting 20 pa. in tête-bêche pair with large margins and 2 copies 1 pia., all tied by blue ‚battal‘. The pair lightly affected by a cover crease. A fine and extremely rare entire; just 2 further tête-bêches on cover from Bulgarian soil have been recorded. Certificates Isfila and Nakri.
