REGISTERED COVER – BACK TO THE SENDER

POSTAL HISTORY WITH COMMEMORATIVE VALUES (GJ 953 + 958 + 959 + 961) – REGISTERED “R963189”, CIRCULATED FROM “LANUS-108-20FEB51-16-ARGENTINA” TO PUERTO RICO – AT THE FRONT SOME INDICATORS OF NOT UNCLAIMED AND CUSTOMS HOUSE RIGHTS (MAY 7 1951) – AT THE BACK