Helsager
Costa Rica, Stemplet helsag
1908. COSTA RICA. 10 CENTIMOS COLON UPU envelope to USA cancelled reverse at arrival GLASTONBURY, CONN MAY 20 1908.
Costa Rica, Ustemplet helsag
1890. COSTA RICA. TARJETA POSTAL C. R. INION POSTAL UNIVERSAL.
Costa Rica, Ustemplet helsag
1883. COSTA RICA. 10 CENTAVOS small envelope.
Costa Rica, Ustemplet helsag
1883. COSTA RICA. 10 CENTAVOS small envelope.