Happy Birthday Charm Vintage Calendar Mechanical Monet BeadRage

A unique mechanical Birthday charm or zipper pull. It's a bigger charm measuring 1 1/8" across - there are 2 tabs that change the month and date to fit your birthday. Says Happy Birthday in script across the front. Monet is marked on the spring clasp but your going to need a loop to see it. It has a regular jump ring attachment. It does not test positive for sterling. I put this piece in sterling charm catagory but it is NOT sterling. Just didn't know where to put it.