the RW looked more like a 1401P with it's lighter shade.
To me the zipper looks like a bell-shaped Talon, a type commonly fitted to the 27752 contract. Some jackets of this contract
can be found in a russet colour.
Of course there is always a possibility that a few jackets from an earlier contract had a bell-shaped Talon fitted. Unless there
are any other distinguishing features visible then it is down to a matter of probability.
I think reality is somewhere between the two... the second pair of photos has drifted the mortar in the bricks to have a blue-ish cast, and the bricks have lost any brown/red cast. I love the look of the original photos but they're probably too far towards the yellow scale. Great photos regardless!
I did try, many times, to get the colours to match but the adjustments were very tricky. In the end it is just down to personal judgement.
There is another colour group-photo. This photo is in a poorer condition than the first two. I have tried to correct the the colour cast in this but
have not had much success, this is the best I could do (not that good really);