27th July 1913 - No. 4 hydraulic coal hoist under construction at Penarth Dock the work of the East Ferry Road Engineering Company Limited. The update notes at the side of the photograph state :

Tank in position - Top of Tip.
All Slewing Cylinders Cranes in position.
Sheave top and bottom of Main Hoist Fitted.
Bridge contractor laying out site of Bridge.

The original of this photograph is held at the archive of the National Museum of Wales. [Museum item number : 83.170I] [629] [20180503]