Buy it and enjoy it! My very first Lee Enfield was No4 MK2 UF55 A15419. I bought it new in the wrap in July 2005, exactly 50 years after it was packed in cosmolineicon and mummy wrapped in July 1955. Sometimes I regret having unwrapped it, but it's a damned fine shooter and a beautiful rifle. It's collector's value would be higher if it was still wrapped, but guns are made for shooting.