The webbing headband is faintly stamped with the stock number YA5000.
No visible makers marks.
The ear cups are marked DLR No. 5 S & the number I.T.B.A.5.

Condition: Overall it appears in good condition although it is sold as un-tested. The flex cable is still supple however the exposed wires and casing are cracked. No connctors or plugs are present.
 
Weight: 432 g.