Lot of three old industrial steampunk vintage, porcelain electrical receptacles outlet sockets. They all marked Hubbell. The four pronged socket is rated for 20 amps / 250 volts. The other two outlets are both rated for 10 amps / 250 volts or 15 amps / 125 volts. All three sockets are smeared or splattered with what we think is orange shellac.