Hi Andy;
Thank you for the thrilling confirmation of Montague Napier’s signature. As a life-long fellow aero engine “buff,” I get so much enjoyment out of knowing that I can hold the same document Montague once had in his own hands, and personally signed. 😀

Perhaps a link of association to put it in same file with a 1917 dated, signed, sealed and red and blue ribboned, original aero engine improvement patent grant to Charles Kirkham. Kirkham’s engine designs led to the Curtiss D-12, which bring to mind, visions of dueling Napier Lion, and Curtiss D-12 Schneider Cup race planes. Two of the best aero engine designs of the period.

Also Thank you Merlinv12 for the most enjoyabel and useful Napier infromation link..