Just a guess but it looks like an early 80's frame/fork.
Does it have a serial number? The earliest frames didn't.
Pretty nice Original. I wouldn't do anything other than a detail(clean & polish) if you plan on selling it. Most BMX guys would prefer to leave it as found.
http://www.cw-racing.com/
you will find all CW's came with a serial,each serial is according to model