Front: Calle Real, Bogota, Colombia 6. Calle Real Back: ESTAMPILLA TARJETA POSTAL "TICHNOR QUALITY VIEWS" REG. U. S. PAT. OFF. MADE ONLY BY TICHNOR BROS., INC., BOSTON, MASS. 77557 REPRESENTANTE PARA COLOMBIA: RAUL DE LA ESPRIELLA B., BARRANQUILLA
