Box of British radio bulbs. Wooden case. Markings on the lid This side UP. The locking hooks are present. Label marked N34828 Signal Generator N1 MK II Station Spares Marconi Instruments Ltd TM 3481. Two bulbs present. One bulb is broken. Some wear and patina to be noted. Condition II+. British radio bulb box. Wooden crate marked This Side Up on lid. Closing hooks present. Plate marked N34828 Signal Generator No. 1 Mk II Station Spares, Marconi Instruments Ltd TM 3481. Two bulbs present, one broken. Showing some wear and patina. Condition II+.