@LMRailway Interesting. I'm not aware of a #timeBall at that location. It appears to be much larger than the one on the #landingStage but the Victoria Tower one was 5'6" so it's conceivably in scope. The inscription appears to say "Keep to the right(or left?)" which suggests that if it was a time ball it might have been repurposed. Unlike the landing stage time ball there is no obvious hoist mechanism although, to be fair, the same is true of sketches of the Victoria Tower ball.