A bit of a query...

... my period of interest is the mid 1920's. Early days of the LNER and when the liveries were probably most interesting. Most of my builds so far (well, of them) are of locos toward the end of this era, 1927/28-ish when the livery had standardised (that is, when pretty much all of the pregrouping engines had been repainted). But I'd like to do at least one model 'the other way'- very early days (1923/24-ish).

So; the last D9 was repainted into LNER apple green in 1926 (as pointed out in a photograph in Steve Banks' new book about LNER expresses). So what would it have worn before then? Full-bore Great Central livery with 'Great Central' on the tendersides and the GC crest on tender and splashers? GC Brunswick green with 'L & N E R' on the tender and a brass oval numberplate? Or something else entirely?

I'd particularly like to know if the LNER insignia (in any form) was applied to pre-group locos wthout the effort being made to compltely repaint the loco into full LNER livery, as this could provide a nice 'bridge' between my 1922-accurate Butler Henderson and my 1927/28-accurate hackbashes and builds...