Wow, Fred thanks for the link. Will download.
The NIB thing is what made me feel a bit apprehensive using it. It survived 50+ years fresh from the factory, pretty rare, Then I go and use it. Only evidence is a bit of discoloration on the aluminum behind the heating element. I imagine if it went into the dishwasher the aluminum would dull very quickly, as a rule no aluminum what so ever in the DW.
One question, around the bottom of the box it's reinforced with twine. looks professional, wonder if someone did it years later or is that the way it came from the factory?