Duralamp 10w 2D lamp

Spotted in Aurora + Kontakt, Amsterdam. Highly unusual indeed, as I was not aware of any companies besides Thorn and later GE ever manufacturing 10w 2D lamps. I suppose this also goes to show that fittings for 10w 2D lamps must have seen very limited popularity outside of the UK too - I myself have a Thorn 10w 2D adapter that I found in Spain and have heard of an Italian collector who came across some 10w lamps and fittings.