how long can tonka toys last?

Whenever I visit a junk shop there's always a Tonka truck.

Usually they are rusty but still very solid.

Often its the big tipper wagon for some reason.

The bulldozers and cranes seem to be languishing in sandpits.

Just how long can these toys last? A few hundred years?

Maybe one day they'll be the only toys left on the surface if they can survive a nuclear blast.

Postscript:

New Jersey reader Brian has supplied me with this atmospheric Tonka shot!

This one has been sitting in an abandoned lot since I moved in next door 15 years ago. These newer ones are only metal frame with plastic body.

Brian.