etno casting metal filigree vintage, mauve colored lamp with glass inserts in bowl shaped shade, has anyone ever heard of Etno Casting.
Nope! I haven't, but may someone else know about it.
There is a possibility that Etno refers to Ethnic pieces.
I have come across Old Etno Jewelry on Pinterest and here is the link through the site: http://www.pinterest.com/olissima/old-etno-jewelry/
Maybe this could help you in finding an answer to the piece that you are referring to.
THANK YOU SO MUCH FOR YOUR INFO ON THE ETNO = ETHNIC PIECES. THAT IS THE FIRST PIECE OF INFO I HAVE RECEIVED