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Looking at this table, we see a number of interesting design decisions. As Gygax writes, "All ability statistics are based on the assumption that Conan was a prime example of the physically and mentally superior individual...". All of his ability scores vary up and/or down over the course of Conan's life, not wholly unlike the rules in the DMG. (Intelligence in parentheses was "potential"; Charisma after a slash was with regard to females.) More interestingly, his class levels in Fighter and Thief also go up, peak, and then degenerate later on in life. (While this was never codified in any ruleset, I think it's an excellent idea.)
The rest of the article presents details on Conan's various skills, proficiencies, and special abilities, which take up most of two magazine pages (an immense length, considering standards of the time). These include -- Weapon proficiencies (14 types by age 40), thieving abilities (various bonuses), armor class (usually light armor), number of attacks (specially increased, up to 3 per round), damage per attack (normal weapons act magical, up to +3), special attacks (modified hit roll of 21+ does double damage), special defenses (surprised 1-in-20, saves get +4 bonus, can't die from poison, heals 10 hp/day), magic resistance (25% if aware), psionics (latent, stress situations only, see table above), special abilities (parry with 2nd weapon, run for a day without fatigue, 75% to hide his trail), secondary skills (6 types by age 25), nonlethal combat (special bonuses to pummeling, grappling, overbearing), and weaponless combat (attack with bare hands as a club). Phew!
Another interesting thing is that if you take this list of special abilities, and compare it to the later Barbarian class writeup for AD&D, you'll see that more things overlap than don't. Conan, appearing first in this "Sorcerer's Scroll" article, clearly served as the template for AD&D Barbarians as they would be constructed later.
Final note: You might also compare this to the much shorter writeup that came earlier in OD&D Sup-IV (Gods, Demigods, and Heroes) by Kuntz & Ward. There he's presented as a Neutral Ftr15/Thf9 with hp 117 (S18/00, I16, W10, C17, D18, X15; surprised only 1-in-12), this being somewhat similar to Gygax's writeup between the ages of 25 and 30. Of course, that work has the further advantage of detailing all the other interesting figures in REH's Hyborea, such as Crom, Set, Thoth Amon, several pages of special magic items, and so forth.