(Bulgaria) 1865 outer letter sheet to Constantinople franked France perforated Napoleon 10c. (2), 20c. (2, one creased with straight edge) and 40c. tied by blue ‘5103’ gri=os chiffres with Varna Turq. D’Europe cds in association, framed PD in same ink, arrival backstamp; some slight toning not unduly detracting from attractive three colour franking