Issued by Malta in 1983, this 40 Senta commemorative marks the 40th anniversary of the General Workers’ Union (GWU), founded in 1943. The design features the GWU crest framed by laurel branches alongside a dynamic illustration of workers addressing a rally, symbolizing solidarity and collective strength. Printed in striking blue and black tones, the stamp reflects Malta’s strong labor history and social movement heritage. Its bold typography and crowd scene give it a powerful, poster-like aesthetic. A meaningful thematic piece for collectors of labor, trade union, and social history philately.