No worries, Jim... an interesting find... don't ya just love it? ...you never know from hole to hole, what might come up shining.
I am no expert, just a best guess, hopefully pointing in the right direction. Chances are that's what it is, 1960's, 70's... but.... considering how the movements in art and style go. What was called the modern art movement began in the late 1800's through to the 1970's.... progressing through variations... the arts and crafts movement, art nouveau, impressionsim, expressionsim, dada, art deco, cubism, surrealism, abstract.... all of these movements were pioneered by visionary artists who influenced and were influenced by other artists as the movements spread and gained popularity then morphed into something else....
To the point, chances are the bracelet was made in the late 60's early '70s, influenced by those modern art movements and the flower power, drug induced stuff of the day (and worth about as much)... but... if it was made, say from 1900-1940, then it becomes an object before it's time, a leading edge work produced by a visionary artist.... if picasso was messing around and cranked that out one afternoon, or Salvador Dali (who by the way did produce jewelry off and on from 1940-1970)... then my friend, that would be the best hole you might ever dig, ha!
An interesting find, Jim, thanks for posting... don't ya just love it?.... you never know!