Lovely vintage "hold-to-the-light" postcard showing a detailed drawing of the Brooklyn and Williamsburg bridges in New York, with various cut outs to allow light to pass through.  Postmarks dated January 16 and January 19, 1907.  Slight toning throughout and some stray marks, overall in fine condition.  5.5 x 3.5 inches (14 x 8.9 cm.).