Czechoslovakia 1927 Airmail Surcharge "L'espagnol" Error

Czechoslovakia · 1927 · 2 Kč on 1.50 Kč

This is a famous error stamp from the 1927 Czechoslovakian airmail series. The original 1.50 Kč stamp, depicting a biplane over Prague, was surcharged with a new value of 2 Kč. This specific error variety features an inverted surcharge, earning it the nickname "L'espagnol" due to its resemblance to a Spanish dancer's pose.

Issued during the First Czechoslovak Republic, this stamp reflects the growing importance of airmail in the interwar period. The inverted surcharge error is one of the most significant rarities of Czechoslovakian philately.