Front:
1779 U.S.POSTAGE 1929
GEORGE ROGERS CLARK
COMMEMORATIVE
VINCENNES
Escuela de Medicina Tropical.
Tropical Medicine School. San Juan, P. R.
#25E
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nch
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Back:
Published by González Padín Co. Inc., San Juan-Ponce-Mayaguez, P. R.
AUTOCHROM
r A8196
