Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Italian Colonies - General Issues - 1934, 10th Anniversary of the March on Rome, 50L blue, bottom sheet margin single imperforate at bottom, full OG, NH, VF and rare, Sassone #PA29b, C.v. €8,000, Est. $1,200-$1,500 , Scott #C27 var