Question regarding the factory box of late 20's-30's Detective Specials in the nickel configuration. Should the box end label be marked as nickel or an additional sticker stating nickel? All the boxes I've seen with nickel guns state blue finish. I have also seen boxes with no serial number markings. If the gun has factory pearl handles will box state pearl or wood? I've been passing on purchasing these gun/box combinations. Should I be? Hours after I see these gun/box combinations, they were sold and for big money.