The LNER Encyclopedia

Question for all you ex-GCR anoraks! I am dithering on the paint scheme to apply to a Gauge 1 model of an LNER Class A5 (GCR Class 9N) 4-6-2 tank engine. I want it in an early LNER livery, and am aware that just after Grouping there were various interim liveries, reflecting the gradual transition from GCR to LNER. The loco I am modelling is LNER No 5168 (a pre-side window version black and white photo of which is shown in the top right hand corner of P21 of Yeadon Register Vol 21).
My questions are:
i) Is this loco in black or green paint, and if green, - will this be GCR green? (It looks too dark for LNER Apple Green)
Also ii) what colour is the lining? If the loco is green, I presume lining will be standard LNER black and white. If loco is black, I am unsure what colour lining would then be.
Any advice gratefully received. John

John,
can you email me a copy of the photo ??...don't have access to this book !.
Cheers Tony.

Read on to pages 35/6 of Yeadon; GC green and lining until May 1925 then black (with GC lining initially). After that, standard LNER mixed traffic black lined red.

Is this duplicating the thread in model railways?

So, something like this then !!....but with L&NER and number on the tank sides ( a slight presumption here as I've no access to the photo you refer to) .
Cheers Tony.

Very smart!