vintage Butler and Wilson statement Aurora Borealis crystal and silver beaded collar necklace, signed with original box, anniversary Birthday, wedding

Sparkle and shine wearing this simply stunning statement collar necklace by Butler and Wilson.
The necklace is made up from 3 strands of aurora Borealis rectangular crystal beads that change colour in the light. It is edged with tiny silver seed beads and has silver tone metal findings. It has a secure Lobster claw catch and has a 2” extension chain with the Butler and Wilson disc logo at the end.
Necklace measures 16” approximately without extension and is 3cm wide.
Excellent vintage condition in original box.