From the 70's, this industrial looking tricycle looks much older. Cute design and there's room for passengers. If you don't like the look (which I do) I'm sure for a pretty penny an auto body shop could pimp it out. Or it could become a nice DIY project.
I don't own a rickshaw, but I do have an old Angeles trike. It's a tank! Practically indestructible and stands up to the weather if "accidentally" left outside.