Excellent electro-mechanical condition only, no exception.
These have black steel frame with round holes, black poly cone, rubber surround, gauze dust cap, "X5109" and "4 Ohm" or "8 Ohm" stencil on magnet (in red IIRC).
Need only one 8 Ohm or 4 Ohm for test, then may need twelve 4 Ohm.