I shuld have said war/post-war period.

It was built to an a Ministry of Supply spec but carries the Prototype ‘P’ and serials in accordance with military specs, also the A.W.52G glider, RG324, which was part of the same programe carried full national military markings.

Good, and rare footage of the A.W.52 here, http://www.youtube.com/watch?v=7H1tyMRtcho