[27 inch Man]

Hi

I am a Newby, & this is my 1st post - years ago I built a 5" gauge version of a locomotive, from a picture I saw in the magazine Narrow Gauge News (to which I used to subscibe, & have recently started to again). It was a Baguley-Drewry DH which apparently ran on the 2' 6" gauge system at MOD Milford Haven. As I have just recently begun to renovate my 5" gauge locomotive, I have been trying to research MOD Milford Haven & its 2' 6" rail system, but with very little success. All I would like to know, if anyone can possibly help, is, what livery did the MOD Milford Haven Baguley-Drewry locos, 3775 & 3776, carry while employed there? It is singularly difficult to ascertain what colour a loco was from a black & white photo, suffice to say it appears to have been a light colour from the photo I have.
Thank you