1857, 6 Baj. black on grey and two single 8 Baj. black on white on folded envelope tied by barred mute cancellation from BOLOGNA 4/10/57, red boxed P.D. alongside, to Belgium with blue Bruxelles 9/10/57 arrival mark on reverse, certificate Cardillo 2010, fine, attractive and a scarce destination! (Katalog-Nr.: Sass. 7a, 9)