Found cleaning my grandparents' farm home. I actually remember using this...sixties...to brush my teeth at the sink n wash our hands.  Grandparents said they had it for their kids...so could very well be 1940-50s. Then, of course, my child used it at the farm. He has a crack at the base of horses neck but still sturdy n usable but probably more of an antique conversation piece. Smoke free home