Bob, I'd have said anything with a specialist body starts getting into the rare camp. Up until a few weeks ago I'd only seen one photograph of the Australian pattern Bofors Light Anti-Aircraft Tractor (
Blueprint for Victory, p.166) and assumed none had survived; then this was posted:
http://www.mapleleafup.org/forums/sh...ad.php?t=14814
No doubt someone will say that a number have made into into preservation but to me it's a rarity...