Vintage Royce Union Fishing Rod Holder w/ Bite Alarm - Not Working

Tried with a battery but it seems to not turn on.

C E SMITH 30° Flush-Mount Stainless Steel Rod Holder

1950S VINTAGE BANK Fishing Steel Fishing Rod Holder $21.24 - PicClick

Bite Alarm Rod Holder

Antique Fishing Rod Holder FOR SALE! - PicClick

VINTAGE BICYCLE ROYCE Union Electric Chrome Horn Model NO. 1703

Work-featured Archives - Greater Lafayette, Indiana

Vtg ROYCE UNION BICYCLE HORN Bite Alarm BEEP BEEP Fishing Rod Holder UNTESTED

Accelerando - Computer Science & Engineering

How to fix a broken fishing rod ring.