SCG3431 - Costa Rica 10 Cts "Plan Postal y Social" Stamp – Postal Building IssueThis 10 centimos stamp from Costa Rica features a detailed image of the historic Central Post Office building in San Jos. Issued under the theme "Plan Postal y Social," the stamp highlights national efforts to enhance postal infrastructure and social services. The ornate border and monochrome blue design lend a classical aesthetic. It reflects Costa Ricas mid 20th century postal modernization. A collector's piece for those interested in Latin American