That's it! Serial Number one! Great Picture. Somebody should forward it to Bill Guthrie. The Machine I'm refering to is the one with 4 tracks and a guy standing on the tracks. This is the serial number one, first ever Thiokol. It's been crushed up, but was still in Bernie's junkyard in Alaska. It was a prototype, 4CX. The ID plate, which was brass said: Scandie Sea Wolf, Serial Number 1, University of Utah Experimental Division, Logan Utah. Back before it got crushed I was actually living in a trailer house in the same 2 mile square junkyard and descovered it one day. The tracks were off, the engine was gone, and the wheel assemblies which had a gearcase like a Grader has joining each pair of wheels had been detached, but were still near the body. I tried calling LMC( formerly Thiokol) as they were still in business at the time and couldn't find out much about it. I took a picture of it in the summer, and another in the winter with plans of restoring it. It was just too incomplete, so I scoffed off with the ID Plate and gave it to Bill Guthrie of sales unlimited in Weiser Idaho. He has it framed in Oak and Glass on the wall directly behind his desk. This is the only picture I have ever seen of the machine when it was intact. It had been shipped to Alaska to the Military to test out. It is remotely possible that enough of it is still ther to restore but that would be a long shot. THE FIRST EVER THIOKOL, FAR OUT!