Vintage Amanda Smith black and red gingham raincoat with flaws

Vintage black and red check gingham raincoat, lined, with zip out second liner in body of coat. Coat has matching fabric buckle belt. No care and materials tag present. A few flaws with age, including marks on the lining, a loose interior button, some wear and discoloration on the collar fold, a repair on a back seam, a missing interior stitch where the lining used to be attached to the coat, and a missing sleeve belt. Additionally, the interior of the hem has some straight edges and some pinked edges. I'm not sure if this was original to the coat or if there was a repair made.