Items

• [D8856ADS], Letter from Perry and Ryer to Thomas Alva Edison, December 3rd, 1888
  1888-12-03
• [D8856ADT], Letter from Perry and Ryer to Thomas Alva Edison, December 5th, 1888
  1888-12-05
• [D8856ADU], Letter from Perry and Ryer to Alfred Ord Tate, December 6th, 1888
  1888-12-06
• [D8856ADV], Letter from Perry and Ryer to Thomas Alva Edison, December 14th, 1888
  1888-12-14