Silly old bear... the original post was too ambiguous, try again.
Westerns carried (at least?) three styles of shed "plates" or "stickers":-
1/ cast metal in the "traditional" elliptical shape of the steam-era, fixed to the bufferbeam skirt (under the driver's window);
2/ the traditional steam era shape on bodyside behind driver's door (not sure if cast plate or painted);
3/ square-ish emblem with depot code on bodyside behind driver's door.
My interest lies with Westerns in the maroon era so the plates are cast (Aluminium? cast iron? brass?) and fitted to the platework below the driver's window. As to which engines carried such plates... this is what I have found from trawling the local library:-
D1001 (08/1967, MLI200)
D1006 (27/11/1965, MLI200)
D1016 (02/1970, Diesels in Depth)
D1055 (<11/1968, Diesels in Depth)
D1061 (23/08/1963, Diesels in Depth)
D1061 (19/10/1963, MLI200)
Not conclusive as to what criteria was being followed when fitting the shed plates.
regards, Graham