Jacket is post WW2 but metals are WW2 and Korean. This soldier would have served in the Ninth Army according to the shoulder patch. Among the ribbons and pins there is a Sterling Silver (marked) Infantry Regiment pin.
There is a 3 star ribbon for European, African & Middle Eastern campaign service. He served in Korea and there is a bronze oak leaf among many other ribbons. Jacket is in really good condition with the exception of a small moth hole below one front pocket and a small hole in the interior of the jacket (see photos). The item "WW2 Service US Army Green Dress Uniform ...