OK, my 77 Trek 510 is in the process of being repainted and it came with no headbadge. I just picked up a Trek 400 that has the correct headbadge and it's in perfect condition, unlike the rest of the frame--well the head tube is the only place on the bike where the paint is unscarred--and naturally I'd like to remove the one I have and send it out to the painter for installation on my restoration but want to be able to do it without damaging the badge itself, or the backing.
I know I could probably pry it off but I'm concerned with damage so any suggestions on non-destructive removal that will leave me a pristine badge? Some kind of citrus solvent? My wife's hair dryer? I'd like to hear from anyone with experience or suggestions.