P.D.Q Ultra-Sensitive Bite Indicator

Found by a gentleman called Keith Armishaw from River Reads Books a P.D.Q Ultra-Sensitive Bite Indicator in its original box.  Keith brought this alarm to our Tented Installation of Vintage Fishing Tackle for the Soul at Port Eliot last weekend where it was not out of place in the Electric Bite Alarm Silent Choir, particularly as the battery appeared to have been removed at some point during the period in history known as the Three Day-Week.