This 60 haléř stamp from Czechoslovakia (Československo), issued in 1971, commemorates the Krompachy Uprising of 1921, a historic workers’ revolt against industrial and social oppression in eastern Slovakia. The stamp reproduces part of the oil painting Krompašská vzbura (1952) by artist Julius Nemčík, vividly portraying the confrontation between armed workers and gendarmes in an industrial townscape dominated by factory chimneys. The uprising became a symbol of early 20th-century labor struggle and class solidarity under harsh postwar conditions. Designed by S. Jindra, the stamp forms part of a cultural-historical series honoring Slovak art and social history.