Vintage set of doll clothes from an estate sale.  These may fit an American Girl doll but I am not sure, they appear to be hand made, the top has 3 working buttons and a small pocket detail, the legs have some discoloration that looks like it will wash out and the elastic is still in good shape, I would guess this set is from the 80s or 90s.  The top measures 5 inches armpit to armpit, the bottoms are 5 inches long top to bottom, the waist is 4 inches wide and the leg opening laying flat is 2 inches.