Underground Post of Ukraine, "For a Lasting Connection with the Region"

Ukraine · 1960 · 50 Kopiyok

This stamp, part of a 1960 series, was issued by the Underground Post of Ukraine (PPU), a clandestine postal service operated by Ukrainian nationalist organizations. The design features a stylized map of Ukraine with a hand holding a letter, symbolizing the connection between the diaspora and the homeland. The text reads "For a Lasting Connection with the Region" and "Underground Post of Ukraine."

These stamps were not valid for official postage but were sold to supporters abroad to raise funds and awareness for the Ukrainian independence movement during the Soviet era. They are considered "cinderella" stamps by philatelists.