WIW Vintage Offenhauser Alum 4bbl manifold

Ok enthusiasts, a good friend was cleaning out his garage and decided to throw this Offy intake at me. He’s currently out of the vintage cars and wanted it to go to someone who still owns one. It is the Offenhauser 5270 alum 4bbl intake manifold, that looks to clean to have been mounted or used, no carbon residue whatsoever. Along with the manifold is an adaptor with a vacuum nipple and a vintage Offy 2” alum spacer. I called Offenhauser in LA and was told these have not been in production for years, but due to an influx of calls they are gearing up to start casting these manifolds again. They are not sure when they will start production. Could not give me a what are these vintage ones worth, except check the internet. So, I’m going to ask the Slant6 gang just that what are these going for. Thanks, Al

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