Hand made Mixed Metal Artisan Modernist Necklace Brooch and Earrings

Description

You're bidding on a stunning collection of Hand Made Artisan Mixed Metal pieces of jewelry.
The Choker style collar necklace is signed that is dated 1988 and signed Mark G (and I can't read the rest of the signature. ).   You can see in the pictures some holes in the gold tone finish which is from when it was made.  There is also tarnishing on the pieces.
The Brooch and earrings I believe were made by another individual.   The flower brooch is marked Hand Made with an emblem that looks almost like a sailboat.
All pieces need a good cleaning.
If anyone recognizes the signature or the emblem, please let me know so I can update my listing.   Thank you.
Please see pictures for condition.   Feel free to ask questions prior to bidding.    Payment due within 3 days of winning bid.