This barometer used to hang in my parents' house when I was growing up. Then my brother claimed it. (The glass was broken when he moved in with my dad... he didn't package it 100% securely, and dad apparently treated the box roughly... not really the fault of either, but the fault of both.) I got it from my brother when I was wondering if my joint pain was pressure related. (I never did make a properly documented study.)
I asked mom (without it there for discussion), and she thought it might have been a wedding present (and therefore not antique).
Dad thinks it might be an antique... he said it wasn't a wedding present, and might have come to the family when my great-grandmother (on my mom's side) moved into a nursing home. Mom... does that sound right?
At any rate, I think it looks cool, and I like how I used a copper-coloured ribbon to hang it from the side of my hand-me-down furniture. (The ribbon goes up over the top, and I screwed a hook into the hidden part of the particle-board side.)