Todd, The 1891 Argentine and Belgium Mausers have a tiny little claw extractor like the SAKO bolt face. While they must have worked well with a clean rifle and ammo, they never used it again. There are still thousands of those little extractors floating around and are almost always available on eBay.
Over time, I've heard, read, got the impression that Paul Mauser became adamant that his rifle would do everything it needed to do - without "stalling in the intersection" or harming the user, so he wouldn't stop, even with so few years between variations as the design evolved.
The big, BIG thing on the seemed to be the way it handled escaping gas in the event of a case rupture, and I developed the impression too that brass might not have been quite what it is today in terms of quality. Maybe an incorrect assumption, but what formed in my mind over time.
Paul Mauser's motivation was as a result of losing an eye to escaping gas, if I remember reading correctly, but I don't know from which model or if it was even one of his creations. If anyone the least bit interested in Mausers doesn't have Ludwig Olsen's book on Mausers, it's a worthwhile investment. There is a lot of fascinating historic information in that book. Now, I'll have to dig it back out again. I haven't seen it in years, but it's a great book to have.
Nothing wrong with those pre-98s either - beauties in their own right, but the 98 has all the bells 'n' whistles.