U.S. and Worldwide Stamps & Postal History
March 17-18, 2015
| Images | Description | Current Bid |
 | Lot #251 COSTA RICA Air Post 1934 Issue, complete set of 13 different large die proofs in issued colors, each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C15-27P | Price Realized $4,500.00 |
 | Lot #252 COSTA RICA Air Post 1934 Allegory of Flight, 1col and 10col, two different large die proofs in black, each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C24,27P | Price Realized $1,400.00 |
 | Lot #253 COSTA RICA Air Post 1937 National Products Exposition, complete set of four different large die proofs in issued colors, also a master die in ultramarine (value tablets blank) each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C31-34P | Price Realized $1,400.00 |
 | Lot #254 COSTA RICA Air Post 1940 La Sabana Airport, complete set of seven different large die proofs in issued colors, each die sunk on full size card from the American Bank Note Company, 25c with control punch, v.f. P Catalog #C39-45P | Price Realized $2,300.00 |
 | Lot #255 COSTA RICA Air Post 1941-46 Football (Soccer), complete set of 12 different large die proofs in issued colors, also a master die in carmine (value tablets blank), each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C57-66,121-23P | Price Realized $4,500.00 |
 | Lot #256 COSTA RICA Air Post 1943-45 Portraits, complete set of 22 different large die proofs in issued colors, also two master dies in black (value tablets blank), each die sunk on full size card from the American Bank Note Company, v.f. An incredible assembly, possibly unique P Catalog #C81-91AP | Price Realized $7,000.00 |
 | Lot #257 COSTA RICA Air Post 1944 Centenary of Founding of San Ramon, complete set of nine different large die proofs in issued colors, also a master die in blue (value tablets blank), each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C94-102P | Price Realized $2,300.00 |
 | Lot #258 COSTA RICA Air Post 1946-48 Portraits, complete set of seven different large die proofs in issued colors, each die sunk on full size card from the American Bank Note Company, v.f. An incredible assembly P Catalog #C124-27,179-81P | Price Realized $2,400.00 |
 | Lot #259 COSTA RICA Air Post 1952-53 Mail Plane, 5c, 10c and 35c, three different large die proofs in issued colors, each die sunk on full size card from the American Bank Note Company, v.f. P Catalog #C216-17,19P | Price Realized $700.00 |
