TY  - BOOK
AU  - Gonzalez,Jaime
TI  - A Puerto Rican counter-stamp
T2  - Numismatic Notes and Monographs
PY  - 1940///
CY  - New York
PB  - American Numismatic Society
KW  - Coins
KW  - Puerto Rico
KW  - Counterstamp (Numismatics)
N1  - Includes bibliographical references
ER  -