I like to say "this is the knife that everybody's grandpa carried." While the Trapper is touted as the most popular knife in Case's arsenal, I actually believe the stockman is the most popular. Everyone who shows me a knife, shows me a Stockman. The 3 blade design has made it one of the most versatile knives on the market for decades. And while it's personally my least favorite design (Sorry, personal preference), you can't argue with a sales history like that of the Stockman. From Exclusive Master Dealers, to flea markets and roadside stands - Everybody sells the Stockman.
Pictured 53253 Green Bone Stockman With Worked Bolsters
Stockman's are also one of the most varied patterns in the Case catalog as well. Most feature 3 blades, usually a clip, sheepsfoot, and spey.
Case has used as many as 7 different pattern numbers for production of the Stockman. They are: #'s 18, 27, 32, 33, 44, 47, 75, 087, and 92. Each features a different length, ranging from 2 3/4 inches to 4 5/16 inches, with rounded or squared bolsters.
Based on the production runs of the various patterns used, the Stockman dates as far back as 1915 and earlier.
From here I dive into speculation, so please don't take my thoughts as 100% fact. Though I believe it to be sound reasoning nonetheless. Where's the name Stockman come from? My best guess would be the farmers who quickly took to the 3 blade design. The pattern is an ideal work knife, highly versatile and might be considered an excellent companion for anyone raising live stock.