I already put them under "loc_name". Not sure what this name is...it doesn't look like Serbian (nor Bulgarian for that matter) - as it should be "Stari put". Maybe this is sign combined from "Stara Kalna" and "put" or "Kalna" is not visible anymore, so it was "Stara Kalna put". Maybe this was old street name and old signs in which case, it is just a matter of time (measured in years) when signs will be replaced. I am puzzled as you:)