This Lyman No. 1A folding tang peep sight has the locking lever and small folding peep and is stamped "DA" on the underside of the base portion. This sight is for the Winchester model 1894 in 25-35, 30-30 & 32 Spl caliber as well as the model 53, & 55 lever action rifles. This sight is in near excellent condition with light wear. Included with the sight is the original two piece cardboard box and papers. The mounting screws are not included.