Batman #171 CGC 3.5 Cómic Calificado - Primer Acertijo de la Edad de Plata - 1965 - Edición Clave
First Silver Age appearance of the Riddler. Title - Batman #171. Batman TV pilot based on story. Certification - CGC. Date - May 1965. Here's a little info on the graded comic book lot you are looking at.