I bought this cab and can't figure out after countless Internet searches who the manufacturer is. It has peavey Sheffield 1290 speakers at 16 ohms in it. It has no front to back support brace, post. It seems really well built and probably ten to twenty years old is my guess. It has black piping and also black piping running from front to back like racing stripes similar to some marshals. Can you tell me what kind of cabinet this is from the pictures below please?