There are two out here that I know of personally. 1950 & 1953. Neither is on the road currently, and one of them (1950) looks like it was parked on a tidal flat for 20 years. Every single panel is rusted so badly that there's no place to stop the patch panel!
I really like the One Toners, the inside of those are HUGE! Sometimes I wish mine was a 1-Ton, not for the weight capacity, but just for the huge inside.