There have been several different versions of the Schrade/Loveless knife. If I'm not mistaken, the first issue was a 1 of 1000 numbered series, followed by a second and possibly a third series that was not numbered. I'm sure someone will come along with more accurate and complete information on those. I have two of the originals that I bought back in the 70's when they first came out and I'm pretty sure the boxes have "1 of 1000" printed on them. I remember the purchases well, I paid $100.00 each for them and that was a lot of money for a knife back then.
There is a knife currently offered that is numbered 1542, so it must be in a later series. Check item #6571479574, it ends today, 26Oct05.
edit: I just took a look at that listing again and at the literature in particular. I may be wrong about my knives being part of a "1 of 1000" series, it would take me forever to dig them out to check. If I'm wrong, chalk it up to the first sign of old timers disease. Yeah, that's what I have, old timers disease!