Dylan:
I don't have an exact year....Health-Mor didn't have information for models that old when I inquired....but was told it's from the early 1950's, like 1951, 1952, 1953. Unfortunately, the motor date wouldn't hold much clues....although I just replaced the basket & didn't check it out, I can tell from the blower exhaust that the motor is a replacement, which makes sense considering it's age & that it was still being used in the garage & to clean out cars when I found it.
Now, the powerhead you have....that would be anywhere from 1996/97 to 2002, as this was used on 2 models, the Filter Queen 70th Anniversary & Filter Queen Limited Edition. I have heard around here & other sources, like YouTube & Facebook, that the Limited Edition model with this PN was discontinued in 2002. There are 2 ways to date it....you could go by the serial number on the bottom plate, or if your PN motor still has it's original Ametek info sticker, the date of production should be on there.
Kevin: My apologies for the misunderstanding. I thought that you were thinking the "marble" finish was painted on. I did not realize that you knew the "marble" finish was an applique, & was merely thinking that perhaps if you had more experience it could be re-created through paint somehow. I will give you credit, though....at least you realize painting isn't your greatest strength, & best not to try it.
Rob