I'm trying to find out when the original triangular 'No Smoking' and double sausage 'First Class' coach window labels were replaced by the circular and rectangular versions respectively. I have a feeling the original types lasted well into the BR Corporate era, so could be found on blue/grey liveried stock, but I'd be grateful if anyone could give me an approximate date for the final changeover.
I am sure I recall the original triangular and double sausage labels on 4 cigs EMUs into the 1980s I think (so never mind blue/grey, probably also in the jaffa cake and NSE livery era). I suspect older hauled stock (Mk1 coaches) would also have had them then, but less of that was around on my then stamping grounds of BR(SR) Brighton Mainline and Coastway etc. Not sure if this was juts on the original build of 4 CIGs. I expect SR DEMUs retained the same.
I have memories of occasionally seeing Circular No Smoking labels fixed on top of the triangular predecessors, which looked particularly daft and seemed pointless to me at the time. Perhaps this happened when the original label was defaced or scratched and they only had the newer round ones to place on top, but were unable or could not be bothered to removed the original label at the depot?
Were the labels placed on the external surface of the interior pane / side of the pane of glass? (or were they placed within a double glazed unit and thus unable to be vandalised or indeed removed from the glazing?).
I
think I have seen Mk2 coaching stock in preservation with original 1st class double sausage labels, so that stock would have carried blue and grey livery. Someone please correct me if they think I am imagining this!