1936 Portugal Costa Flight Stamp with Inverted Surcharge Error
Portugal · 1936 · 50c
The stamp depicts an airplane in flight over a landscape, with 'REPUBLICA PORTUGUESA' and 'CORREIO' at the top. It features an original denomination of '1$50' and a prominent inverted surcharge of '50c'.
This stamp commemorates a significant Portuguese flight in 1936, likely a pioneering airmail route. The inverted surcharge makes it a highly sought-after philatelic error, adding to its historical and collector value.
Printing Method
Engraved
Image: <a href="//commons.wikimedia.org/w/index.php?title=User:Nuno_Carvalho_de_Sousa&action=edit&redlink=1" class="new" title="User:Nuno Carvalho de Sousa (page does not exist)">Carvalho de Sousa: The Carvalho de Sousa Collections Lisbon-Dubai</a> · License: CC BY 4.0
Estimated Values by Condition
Perfectly centered, fresh, no faults
Well centered, fresh colors
Nicely centered, minor flaws
Average centering, acceptable
Off-center or visible wear
Prices are approximate market estimates for educational purposes. Actual values depend on specific factors including cancel type, margins, and provenance.
