Despite being supposedly on leave this week, and also working from home when I am supposed to be at work, today I needed to grab some spares to fix something at Milsons Point wharf. Then a walk over to Kirribilli to catch a ferry to Kurraba Point and fix one there. The ferry then took me back to Circular Quay where I spotted this one between wharf 3 and wharf 4 before getting the train home. D1/T1 for this, though in normal times it would probably be buried under the feet of thousands of tourists. Thanks swampgecko and tronador. Unluckily it seems this has already been found so noted not found.