Vatican, 1934, 2.55L on 2.50L Provisional Surcharge, in combination with 1938, 25c-10L First Airmails complete on pristine registered First Day of Issue cover (for airmail set), all tied by neat "22.6.38" cds's, Extremely Fine; with 1966 A. Diena certificate and signed. Scott Nos. 38+C1-C8  Estimate $200 - 300. $0 (Image)