Most of these rifles that are in the USAicon have the new Irish serial number, difficult to find just a Mark 1*** with the original serial number. Also to have to look around for along time just to find a Mark 3 fore-end for the volley sight plate to use in your restoration. I believe Springfield Sporters in PA still has the Mark 1 nose cap. It is possible to assemble a rifle from Mark 3 partsAttachment 69000

Here is a photo of an Enfield 1904 Mark 1*** with three serial numbers ! the first two were lined-out, the new serial number is G 839 (bolt is G 837)