Signed, buying limited-edition handmade sterling silver earrings

buying These long dramatic earrings were handmade in the 1970s using thin sheets of sterling silver and brass wire.
They are fifth in a limited edition of 12. The back is marked 5/12, designating the edition number, not the date.
The earrings are signed on the back but the name of the artist is unclear.
Each earring is 3 1/8 inches long, 1 inch wide. They weigh 17.4 grams.
Excellent condition.