Happy to add this fine example to my collection. I fettled this last year for a fellow collector and mentioned to him if he ever decided to part with it to give me a shot at it... Glad he did Instant lights and operates just like it's supposed to. Sweet runner.
L&H certainly made a superior product. These have just one weak point though. The fuel/air valve has opposing needle valves and the air shut off is screwed to the spindle with a left hand thread so if you open fully to close of the air feed too hard the spindle can shear. This is from a model 333A but the Instant control arrangement is the same. ::Neil::
Thank you all for the nice comments. Neil thank you for sharing about the easily broken valve stems. Luckily this one was in working order.