Does anybody know if this handbook still exists? I found an obscure reference to a handbook being written for the tanks while searching for info on the M1917 6-ton. I have the handbook for the 6-ton and it seems it was written very early while the tanks were still in the prototype stage.
Thank you for the reply. I have just begun researching this tank, I haven't yet attempted to contact the US National Archives or the Museums that house the remaining two examples.
I know at some point I'll have to contact the museums... but I'd like to try and find as much archival information as possible first.