This badge is for sale on eBay. Seller says they think it's off a 1950s Ducati outboard motor. Looks nice on your bike! What adhesive did you use? Did you have to remove the locating pins on the back of the badge?
Hello fast woman (interesting nick name!)
Yes I had found that link but can't find any pictures. the font looks very Art Deco hence why I thought it was off a radio. Ducati certainly made radios - I believe that's why their factory got bombed in the WW2.
As for adhesive I used some 1mm doubled sided sticky foam by 3 M. Got the strongest one I could find.
I removed the pins on the back with a Drexel mutation tool, then I bent the badge by hand to match the curve in the panel. then I stuck on the foam and cut around the badge out line (painful!). Then I ran a burning match of the edge of the foam and stuck it on.
Seems to be fixed very well. no sign of any problem so far.