Re: (sings)
Large Balls of Copper were hoisted as signals. Still used in 1970s at Leith. Dropping of ball indicated exactly (within a few seconds of 1pm at same time as one o'clock gun was fired from Edinburgh Castle to give a time signal to mariners in Leith Roads.
Refer
https://stories.miln.eu/graham/2014-01-09-one-oclock-gun-at-edinburgh-castle/2013-edinburgh-one-o-clock-gun.jpg
Biting the hand that feeds IT
