I know they were imported from Italy, so, who made them in Italy? good bad econo or well built?

Zoli

BUT the proofmarks should tell the true story

http://www.shotguns.se/html/italian_trademarks.html

https://www.thefirearmsforum.com/threads/kleinguenther-12-guage-2-3-4.38870/

http://archives.collectorsfirearms.com/?&sort=alphadesc&category=&product=S4086

loads of fun going thru some old catalogs of mine from the 70's! every time i look for some stuff to weed out, i read them one more time....and back on the shelf it goes!
thanks.