Vintage Silver Monogram Brooch EHM

Found this cool vintage silver brooch with the initials EHM in a really nice interlocking script. I'm a silversmith and it's my opinion that it's sterling silver however, it is not stamped. It has a solid weight to it and that classic silver shine. The pin on the back is still sturdy and works like it should. It's used so there is some light surface wear and a bit of natural patina which i think makes it look better anyway. Perfect for a blazer or pinning on a scarf if you want that old school look.