In Lost in Space, as we know, the name of the Robinson's ship was the Jupiter II. In the 1990s movie, there is a shell around the ship that looks like the familiar flying saucer, that is called the Jupiter I. After liftoff, and when the ship is outside of the atmosphere, the shell blows apart, revealing the newer spaceship design that is then referred to as the Jupiter II. This is a clever way to slip in the original ship design and explain why the ship they're on is the 2nd with that name.
But I don't recall hearing any references, in the series, to a Jupiter I (presumably, it could be just simply called "The Jupiter"). Is there ever any reference in the series to a Jupiter I? Is it referenced in the original pilot or in any "lost" footage or ever referenced in any interviews with the cast or crew?
Do we know anything about the original Jupiter before the familar Jupiter II?