Some slant six valve covers

Hyper_pak said
Not sure where Offy is having their stuff made, I guess it would surprise me if it was US made.
I got an AussieSpeed one a couple of months ago, it's well made.
With prices for new stuff I thought the 125 I was asking for my D.C. chrome cover was more than fair.
Try to find another one.

Well, Offy's web site has this logo:

Offenhauser - The Greatest Name In Racing
"Offenhauser was founded in 1946, by Fred C. Offenhauser, and has operated solely under the control of family members since its formation. He was inducted into the SEMA Hall of Fame in 2014 (Specialty Equipment Market Association ) posthumously. Fred passed away in 1992 and left the business to his two sons, Tay and Jim."

Doesn't really answer any questions about present day quality, I suppose. But it does look like their stuff is made here in the USA, by the same family since just after WWII.