S3 roll cage Petty strut

[Chris71]

Discovered what I think is the Petty strut from my old Roadsport A in the garage over the weekend. It came as part of the spares package and I never even offered it up to check if it would fit. Assuming it was matched to the rest of the car it's for the standard cross-braced S3 roll cage (visible in the Caterham tab on my profile).

Just thought I'd ask if it's actually worth anything before I stick it up in the classifieds? May consider just donating it to a passing PHer if I'm feeling nice.