1915 British R.N.A.S. Experimental Rolls-Royce Armoured Car Maxim “Pom-Pom” MG.

1915 British R.N.A.S. Experimental Rolls-Royce Armoured Car, equipped with a
Maxim* 1-Pdr. (37-mm) Heavy M.G. “Pom-Pom”.

* 1902 Ordance Q.F. 1.PR., Mark I. [Maxim, after Vickers]