Charles
Read this: http://www.apug.org/forums/forum172/...fa-apx400.html
Yes, it is coated and finish by Harman Technology.

or even Kentmere 400 (If it still exists)
It is in production as far as I know. It was only introduced in 2009: http://www.apug.org/forums/forum37/5...will-know.html