The mark to the left of the DA14 is an Enfield stage inspectors mark. The mark to the right looks like a crown over 55? Another stage inspectors mark. All these high level inspectors, all ex apprentices had their own marks and if the work wasn't up to scratch, they didn't pass it. The cocking handle slide cover is the DE of Enfield. The FB77 is Firth Brown and the steel batch number. What is the actual body number