From W.C. Sellar and R.J. Yeatman. Garden Rubbish and Other Country Bumps. With affrontispiece and numerous insulting illustrations by Stephen Dowling (Licentiate of the Royal Raspberry Society). London: Methuen & Co. Ltd., 1936, Second Edition 1943.
The Latin inscription reads literally, "Which god V.P. first mad." The meaning of this is lost on me.