Big Chunky White 1970s Necklace

Very Big, Very Chunky, Very 1970s.
Big beads, like carved stones, and three gold coloured cogs..
The beads are made of plastic.
18' long, and with a secure safety clip at the back 
They sit just below the collar bone.
These were originally for sale in an old seaside town jewellery kiosk... on a pier.
The owner retired in the early 1980s packed up her stock and put the
boxes in her basement.
Where they stayed ...until I came along....
So, in great unused condition.