3 lots
Lot 1144
Panama » Panama Canal Zone
1918 (Oct. 18) « First Non-Stop Ocean to Ocean Aero Mail Service, » long Official « Liberty Loan » cover flown Cristobal-Balboa Heights with both cachet-cds,…
Estimation: 2’000 EUR
Lot 1145
Panama » Panama Canal Zone
1920 (Oct. 6) First Air Service Dispatch cover with special cachet ds of Cristobal and 2c ovpt. tied at Balboa (Oct. 4), special boxed 6-line cachet « Aviator…
Estimation: 600 EUR
Lot 1146
Panama » Panama Canal Zone
1925 (2 Jan.) FFC for trial flight, Cristobal, Canal Zone to Costa Rica, long cover with plate n° vert. strip of 5 of 1c Deep Green (Scott 71) all tied…
Estimation: 120 EUR