Could any one help me with directions for a prestolite torch? I
inheiredtd one an would like to use it. I have been using an
oxegen/propane Little Torch, but in my cold shop, it isn’t big
enough to keep larger pieces warm enough fot the solder to flo.
(Actually, the flux won’t even melt!) Also, If there is some one who
is familiar with gem ID and using a chealsea filter, I’d like tokow
which white and yellow stones would appear blue through the filter.