Many years ago I saw an E grade Lefever with straight stock which had no safety. It did not appear the tang had ever been cut with the slot for one. Unfortunately the stock had been heavily sanded, off the gun, for re-finishing. All mating surfaces had ben rounded over. Upon putting back together big gaps would have been present but these had been filled with something resembling plastic wood which was not even a very good color match. I have no idea now what SN range it was, but was of the large cocking hook variety. Barrels were I think 30", do not recall them being 32's.