Kingfisher Float Value question

I have a wingtip float for a WW2 vought OS2U Kingfisher floatplane.
I'd like to hear everyone's off the cuff opinion of what it should sell
for.
I want to sell it for something at least in the ball park of its value and
not essentially give it away.
Its major flaw is that a large section of the top metal was removed, back in
the 1950s, to convert
it into a kid's swingset swing.

Just quick value estimates posted here are fine.
Thanks for the help.