Hi Jalops. We have been finding a few of these devices in the forest and on the structures in the wildlife sanctuary where I work. We didn't put them there, the City didn't install them. We're wondering if they are some sort of a device associated with an Augmented Reality game.
We've image searched them, looked on a couple of boards but we can't find a record of them anywhere.
If anybody here recognizes them, please let me know what they are & what they do. They're robust and secure enough that we're wondering if they house some sort of RFID or similar. They're about the size of a small padlock.