I have a magneto that is a WebsterTri Polar Oscillator, and on 1 end of the copper looking band is "Type m 1 Milton Brown" On the other end is No. 479071 McInnerney Podlesak Patents. It seems to be an all self contained mag, that bots directly where the igniter would bolt on and the trip arm activates the mag and trip all with 1 lever. What is this off of and does it have any value??? Marty.