Part of a church ??
Is that a flag bracket?
Jacki ~ loving Aruba from NJ
To expand on Mazoo's guess, I think its from the cemetery, and the white bracket thing is to hold flowers on a person's particular headstone/grave.
I don't think it's a door bell. Could be a fastener that holds the front panel of a mausoleum crypt? I also thought that the holder on the right was some sort of receptacle for flowers, etc. So these could be the above ground burial vaults in a cemetery? Which one--don't know. I'm going with that for now.