This is the pretty bell I ring if Michael is out in the yard working when supper is ready.
It's vintage, and I'm ashamed to admit that I haven't got the foggiest clue as to where I got it.
I know I found it last Summer along with its near-twin, and I gave it's almost indetical counterpart to Michael's mother for the same purpose.
Her bell's ring is a slightly different sound than mine, but they are both delightfully pleasant.
Both of us keep the bells hanging in our kitchens for easy access. :)