QOTD: Can Anyone ID This Streamliner?

CC reader Jeff B. sent me scans of two slides taken by his dad at the Expo 86 in Vancouver, BC. It’s clearly of a streamliner prototype from the 1930s, a time when a number of them were made. I’ quite sure I’ve seen pictures of it before, but just can’t come up with a name. Can any of you?

Here’s the rear: