Making an etching involves several processes. Top left, the reversed image is traced on to the zinc plate which is covered with a soft wax ground. It is then placed in nitric acid which bites into the plate where the wax has been removed by the tracing. Top right, the resulting line etching.Bottom left, aquatint is used to add tone to the plate. This is the first proof printed with black ink.Bottom right, the colour proof using two colours.Centre, the finished zinc plate.
The edition of 25 prints - all numbered, titled and signed - made by inking up and wiping the finished plate - 25 times!