Just called KA-BAR tech support and had a great chat. It's sure nice to talk to a support person who is eager and willing to help. Anyway, she said the 1200, 2, 3, 4, 5, 7, and 9 were made in the same time period. She also said the 1203, 5, and 7 are very similar.
The hunt is on--I'm going to see if I can find one from one of those knives.
Matt