Items

• [NB239036], Technical Note, William De Mille Telfair, August 1918
  1918-08-00
• [NB239041], Technical Note, William De Mille Telfair, September 1918
  1918-09-00
• [NB239045], Technical Note, William De Mille Telfair, October 1918
  1918-10-00
• [NB239049], Technical Note, William De Mille Telfair, November 1918
  1918-11-00
• [NB239050], Technical Note, William De Mille Telfair, December 1918
  1918-12-00
• [NB239052], Technical Note, William De Mille Telfair, January 1919
  1919-01-00
• [NB239055], Technical Note, William De Mille Telfair, February 1919
  1919-02-00
• [NB239059], Technical Note, William De Mille Telfair, March 1919
  1919-03-00
• [NB239063], Technical Note, William De Mille Telfair, April 1919
  1919-04-00
• [NB239066], Technical Note, William De Mille Telfair, May 1919
  1919-05-00
• [NB239066A], Technical Note, William De Mille Telfair, May 13th, 1919
  1919-05-13
• [NB239068], Technical Note, William De Mille Telfair, May 17th, 1919
  1919-05-17
• [NB239070], Technical Note, William Alphonsus Hayes, William De Mille Telfair, May 1919
  1919-05-00