Seen in an antique shop today....

[vvp39]

It looks pretty basic to me.

[AbabeBill]

Built to last!

[Cute_Kitten]

What decade was that from? A very...interesting potty chair. Or was it placed on top of an adult toilet?  1920s? 30s? 40s?  One of those is my guess. 

[1950potty]

It is a child seat that went on a standard toilet seat.  probably from 1930s to early 1950s.  The open front design changed to a closed front in the 1950s.  A rubber pee shield was inserted on the gap so boys didn't shoot pee all over the place.  Notice the seat belt.  Potty training before say the 1970s was not voluntary for the child.

[WetDad]

It could be yours for $30.