My dad sold hearses and ambulances (Miller-Meteor of St. Paul, MN) the last three years of his life. I'd travel with him occasionally during the summer, and consequently spent a fair amount of time at funeral homes in the tri-state area. Saw a number of devices similar to the one in the brochure. I will never, ever forget the smell of the body preparation rooms. Yeesh!
I suppose this device falls into the "something for the ghoul with everything" category, LOL.
Your oddest find yet, Launderess.