I just tore it down and nothing looks weird, edges look sharp, nothing chipped but 'replace the cheapest part first ' so I will order a sear and sear spring from midway this week. The wide spur hammer is original GI so I would hate to have to try to replace it. In fact other than the sear, disconnector, link, pin, grips, grip screws? and essex frame it's all GI. The bbl is marked HS but don't know if that makes it a ww1 or 2 bbl. The slide is ww1 vintage for sure.