This unusually shaped toilet is a common version of the Thai squat. The user steps up and places a foot on each footpad, facing forward. The only way to flush a squat in Siam is to dump a bucket of water down it. The water trough and bowl serve this purpose. Paper goes in the bin and not the toilet, as the plumbing in much of Thailand is delicate and paper will quickly clog the pipes.
Rama IV Road