Being as a bike is in the picture, you can assume that the tandoor is situated near a door.
If it's charcoaled fuelled it would need some serious ventilation.
It would kick out as much smoke as a barbeque, when it's lit.
I have just bought a book on tandoors called "tandoor by ranjit rai"
Apparently they are used, in various shapes and forms, all over the world.
The insides are always very similar, though.
The lip of this one looks ceramic and fairly standard, but the outside looks extra worn.
Maybe it's very old.
I spoke to a restaurant owner and he said he got fifteen years use out of a second hand one!
It's life ends when the ceramic inside, cracks beyond repair.