Osram - GEC 150w blue dichroic PAR38 lamp

I managed to win this lamp on Ebay recently, and have now officially completed the set (I believe, unless I am missing amber) of British Sealed Beams dichroic PAR lamps. This lamp is my favourite, as it creates a much nicer effect than the other colours. British sealed beams was a factory joint owned by GEC and Thorn, that specialised in the manufacture of PAR lamps and reflectors.