Letter from J. Ridskopf to Isaac Leeser;February 10, 1860Letter from Dr. J. Ridskopf in New York City to Isaac Leeser in Philadelphia, dated February 10, 1860. Ridskopf writes to inquire about advertising rates in Leeser's paper and announces the opening of his academy, providing a detailed description of the school's offerings and costs. The letter is written in both English and German. It includes a multi-page advertisement for the academy.