One of my fav buck collaborations.lets see if I can answer some of your questions.when the 880 was introduced there were two blade configurations,the spearpoint,and the tanto.you could get them with a partially serrated blade as well.all models were bead blasted,for a non glare appearance,the earliest models came with only a single thumb stud for right handlers,and some very rough ,grippy g-10 .there were two model sizes available,and the early models all have the rough handles with a single thumb stud and no extra holes in the handles for switching the clip.buck made some changes including heat treating the liner lock where it contacts the blade when locked,dual the studs for better opening,smootherg10 handles,and extra holes and screws for moving the clip where you preferred.although a tank of a knife,the lockup on these were nothing great,becoming loose after minimal use.hard use made a mess out of these knives which surprised me.