Welcome dessy, the year is definately 1918.
The book you need for markings, is "The Broad Arrow" , this is a Skennerton book.
Ian Skennertonicon has written many books, depending on your main interest you can find most of what reference material you need at
http://www.skennerton.com
As stated the finish is not original, the rifle looks like a very nice example though.























































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