The Jaws print was a 1975 original to be sure. It looked and sounded very rough.
As to how many Technicolor prints...I'd say maybe a half dozen at the most. I.B. Technicolor didn't exist in the U.S. in 1977, but it still was being done in England. So, you probably had 2 Technicolor prints per major city in England, probably approaching a half dozen in total. That's a complete guess on my part, but it's what I would peg it at. Plus, one that Lucas had printed for himself. So it's pretty rare that one of them was privately purchased or stolen. It's clearly a collector, given how greatly the print has been cared for--hardly any dirt and scratching at all, and this must have been used in a regular theatrical run. I wonder if it was put through a formal cleaning process at some point.