I’ve seen the JetStar prototype a few times in various visits to the Museum of Flight restoration facility up at Paine Field.  The JetStar is a favorite of mine as might be determined by several of my posts over the years.  The prototype is a bit different, though.  It was built with two engines – Bristol Orpheus turbojets.  After the first two aircraft, the rest were four engined.  After it finished testing, it was used by Lockheed for transport duties.  It ended up in Vancouver before coming into the museum’s collection.  These shots are of it in the restoration shop.