Issued in 1977, this Mexican airmail commemorative stamp marks the 50th anniversary of the Federal Conciliation and Arbitration Board, an important institution in Mexico’s labor justice system. The modern graphic design features symbolic raised hands balancing scales, representing fairness, mediation, and workers’ rights. Printed in striking orange and brown tones with a $1.60 denomination, the stamp reflects the bold minimalist design style popular in 1970s Mexican philately. It is a meaningful thematic addition for collectors specializing in labor history, social justice themes, or Mexican airmail issues. Well-centered examples with clean perforations are particularly desirable.