Hi, I was given an Optimus 350/350CP which had been lying around a shed for many years, so I took it apart and cleaned it up as best as I could with the intention of getting it running again. I should say from the outset that I have no experience using pressure lamps so obviously caution is the guiding principle here. Unfortunately I managed to break the short brass tube with the bracket that attaches to the screw at the bottom of the lamp. Searching online I've had no luck identifying it so I can look for a spare. Any help would be much appreciated, thanks.