Half Moon Six Pack Air Cleaners

[2Sharp2]

I’m trying to find another set of these air cleaners. No idea what company made them. I bought them 49 years ago from a friend here in town he had a Dart with a 340 and six pack. Only other set I’ve ever seen was on a Cobra at World of Wheels many years ago. Has anyone seen these before? Do you know what company produced them? Any information would be helpful and appreciated.
Half moon shape with metal grid has chrome tops.

 

[Righty Tighty]

I don't know who made those particular ones, but there's a member who was making some that were rectangular on his CNC. Maybe he can modify his CAD file to make them half-moons?

FOR SALE - CNC Machined 6 pack air cleaner kit

 

[Juan Veldez]

I just looked through 50 pages of air cleaners on Summit, and all the name brands individually. Nothing. I kinda remember seeing these in the late 70's, early 80's in Pep Boys. I think Mr. Gasket made them. Even if you found them, unless they have washable air filters, after they get dirty, your done without replacement filters. Very cool, unique pieces.