Items

• [CM04AF], Report from Walter Eugene Burton, Heinrich H Meno Kammerhoff to Thomas Alva Edison, April 28th, 1916
  1916-04-28
• [CM04AM], Report from Walter Eugene Burton, Heinrich H Meno Kammerhoff to Thomas Alva Edison, May 22nd, 1916
  1916-05-22
• [CM04AN], Report from Walter Eugene Burton, Heinrich H Meno Kammerhoff to Thomas Alva Edison, May 26th, 1916
  1916-05-26
• [CM05AH], Report from Heinrich H Meno Kammerhoff to Thomas Alva Edison, November 3rd, 1917
  1917-11-03
• [CM05AI], Report from Heinrich H Meno Kammerhoff to Thomas Alva Edison, November 7th, 1917
  1917-11-07
• [E1836AZ], Letter from Bror Helge Stahle to William Henry Meadowcroft, July 29th, 1918
  1918-07-29