Items

• [X504A], Letter from William Henry Meadowcroft to Pusey Bancroft Heald, October 1st, 1921
  1921-10-01
• [X504C], Letter from Thomas Alva Edison to Foster (J.A.) Co, Pusey Bancroft Heald, June 28th, 1924
  1924-06-28
• [X504D], Letter from Thomas Alva Edison to Foster (J.A.) Co, Pusey Bancroft Heald, August 29th, 1924
  1924-08-29
• [X504F], Letter from Thomas Alva Edison to Pusey Bancroft Heald, Foster (J.A.) Co, November 13th, 1925
  1925-11-13