A classic early Polish definitive featuring a strong industrial worker carrying a pickaxe, symbolizing labor, reconstruction, and national strength. Issued by Poland (Poczta Polska), this bold black-engraved design reflects the country’s post-war industrial identity with factory structures in the background. The detailed line work and patriotic eagle emblems add historic character and depth. Printed in a simple yet powerful monochrome style, typical of early socialist-era issues. A highly collectible thematic piece for labor, industry, and Europe definitives collections. Excellent addition for collectors of Poland’s reconstruction period stamps.