Six Star said:Wait for the book.
There are at least 150 different Marks & Markings on the Pattern 14 (No3Mk1, No3Mk1* and Mk1*(T)) and M1917 rifles. Their bayonets also have a myriad of marks and markings.
I guess the most basic markings to look for if you want a "matching" rifle are the stock markings. Remington is marked "IR", Eddystone is marked "IE" and Winchester is marked "IW".
Original US Production Pattern 14 rifles manufactured before Dec 1916 are serial numbered on the receivers only.
Hitzy said:When did ERA start production? I have a 4 digit 1916 dated ERA with bolt,barrel, and receiver s/n.