Don, Mike, GeneB, and Calhoun, Thanks for all your input, and two more serial numbers. #1842 from the Rock Island auction takes care of the theory (actually a good one) that Stevens might have started the serial numbers at 2000. Of course, they could have started at 1000 or 1500.
The #4343 at the Buffalo Bill Museum, makes it 12 guns under 5000 and one over. I seem to remember reading somewhere that most of the Stevens High Power rifles were made between 1910 and 1912 - with the majority made in 1912. I'll try to find where I read that.
