Artifact Details Title Hollerith Tabulator Card Reader Catalog Number 102698402 Type Still image Description Color image of Hollerith Tabulator card reader . The reader is open showing the pins on the upper jaw with holes on the bottom.. On Verso: FilmtoFrame 949-2100 20.9.2002 338/03 Dimensions overall: 4 in x 6 in Category Photograph Credit Courtesy of Gwen Bell Lot Number X7413.2015