Hello Dave
What you have there is a Lowell Thoro-spray insecticide sprayer, model 301
Taken from a Lowell sprayer catalogue in my collection.
Photos attached, do you want a copy mate ?
Paul
Theres a 1949 price list with this model listed, I 'll do you a copy of that as well
Nice machines, here's my Aquabug (must fit the cowling although I do think it looks better without it)
Also two Amp Champs, one with O&R power and the other with an Italian Fox F7 engine in it
Thanks David I will put that carb on the marine engine (blue cowling) in due course.
When the new batch of O&R decals arrive from the USA I will refresh the cowlings