T. &. R. Annan & Sons 1879-1889 (ca, taken) 1889 (published) Gauge basin, at termination of aqueduct, Mugdock reservoir, 25 1/2 miles from Loch Katrine, 9 miles from Glasgow Bridge
James M. Gale, 1889, Glasgow Corporation Water Works: Photographic Views of Loch Katrine, and of Some of the Principal Works Constructed for Introducing the Water of Loch Katrine into the City of Glasgow by T. and R. Annan and Sons, (expanded edition), (Glasgow: C. Erskine)
