1956 Hotpoint Dealer sales brochure uploaded.
 

Here's one for the Hotpoint lineup in full color from 1956, including a price sheet.

I don't know if this was for the 56 lineup or 57 or both but it was printed in mid 56.

The location is now a vacant lot or Habitat for Humanity, can't tell for sure.

http://vintagetvsets.com/schem/hotpoint%20brochure2.pdf

The 21S502 was our "Window On the World" from 1957 until 1971.A generous gift to us from my Grand Dad, oddly enough a Hotpoint dealer just north of Pittsburgh PA.
Now I finally have a clue what it retailed for. :)

RJ