It looks like the chrome trim on the left side of the panel is missing. That, or the picture quality is such that the light is reflecting on the thin chrome piece that should be there.
I may have to get this. It is truly a rare bird and yes, like you, I've only seen a hint of these models in a catalogue somewhere, never in person or in a photo. And I love coppertone.
It's one of the appliances on the cover of the 1973 Sweets insert, just a line drawing. Not even featured inside the catalog. If it's close to somebody I say go for it.