I have a cast iron, or cast steel, water trough(?)... It's dimensions are about 4ft long by 2ft wide by 2ft tall. The upper trough/tub half is oval kinda bathtub shaped, & the base is rectangular. It seems to be one complete piece probably cast welded(?) together wherever it was made. It has 4 threaded holes in the tub bottom. 2 are 1in npt, 1 is 1/2in npt, & the other is 1/4in npt... It may have been set up to 'automatically' water &/or have had a heat system (?)... It doesn't have any identifying numbers, letters, or symbols. It's not big enough to accommodate an adult comfortably, so I doubt it's a children's bathtub. I believe it's a fancy antique livestock trough. I have pictures..