Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Vatican City - Air Post stamps

The auction will start in __ days and __ hours

Start price: $3,000

Buyer's premium:

1958, Dome of St. Peter’s Basilica, 500L green and blue green, perforation 14, unfolded block of four, usually centered to the top, fresh colors and paper, full OG, NH, VF and extremely rare, only a few blocks survived, E. Diena certificate, C.v. $16,000 as singles, Sassone #A33/1, €28,500, Est. $5,000-$6,000, Sc. #C33a