I think that little boy was turned upsidedown and used to polish the floor!
I`m sorry to labour the point but a romper suit was two pieces, a top blouse/shirt and a pair of pants ,gathered and elasticated ,buttoned on to the blouse at waist height.
Rompers were just what seoras was photographed wearing ( oh yes he was!) One piece,gathered and buttoned between the legs. It mean you did not have to undress the baby when you changed its nappies. You just undid the buttons between the legs.
Cheerio, Viktoria.