It was painted and signed by John W. Porter. It is an oil-on-canvas original and I'm pretty sure it dates from the 50's-60's. I have been told the artist spent most of the last years of his life living in California and seascapes were one of his favorite subjects. This is a rather large and beautiful painting. Is it worth anything of value other than its' realistic beauty? When I stand before this work, I sometimes feel as if my feet will get wet from the surf!