It also has the "C" clasp that was used in jewelry up until the 1900's - then the safety catch was invented.
It is 2" L x 1/2" W and I am not sure of the metal used, but am thinking pot metal. Back has copperish tone with a little tarnish.
This is a great little piece for the lover of art deco!! I think its in pretty good condition for its age; it's wearable and collectible.
Shipping will be USPS First Class with insurance included.