This attractive airmail pair from Guatemala showcases two prominent mid-20th-century public buildings, reflecting the nation’s post-war modernization and institutional growth. The 3 centavos stamp depicts the Municipalidad Capitalina (Capital City Hall), while the 4 centavos value features the Instituto Guatemalteco de Seguridad Social (IGSS) headquarters. Printed by Staatsdruckerei Wien (Vienna State Printing Works), these stamps are admired for their clean architectural lines, crisp engraving, and balanced two-tone color schemes. Issued for Correo Aéreo, they form a desirable thematic set for collectors of architecture, civic institutions, and Central American airmail issues.

Country: Guatemala
Theme: Modern architecture, public institutions, airmail
Printing: Staatsdruckerei Wien
Condition: Appears Mint (as imaged)
Collectibility: Strong appeal for architecture & airmail specialists; attractive as a matched pair