1865, Folded letter from Burgas to Constantinople bearing Lomb.-Ven. pair 10 sld. blue tied by very fine single circle ‘BURGAS 4/12’ datestamp in black (Tchilinghirian fig.936), on reverse ‘Lloyd Agenzie/Constantinople’ arrival cds., additional five stamps Levante with same cancellation, fine. Cert. Ferchenbauer (1996)
