[Reece]

Not uncommon for a vendor to just stick whatever tubes in empty sockets to sell a set.

Ditto on the posts above about the speaker probably being a replacement. The cord hanging down with the plug on the end would have gone to the original speaker that had a field coil. Wonder how they tackled the lack of the field coil in the circuit? Choke or big resistor under the chassis? Looks like only two primary wires going to the output transformer. Does that radio have push-pull output? If so should be three wires. Circuit may have been "modified."