Case XX Knife Pattern
The '052 Pattern, which appeared over one hundred years ago, is known to collectors as the Medium Congress; "Medium" because it is larger in size than the Small Congress (68) and smaller than the Large Congress (88). The congress is identified by the unique back on the frame which is shaped like a cresent moon. This knife has square bolsters and a sheepfoot maste blade. Case Congress knives either have two blades (one at each end) or four blades (two at each end). The four-bladed Congress, which is one of the most sought after patterns, is equipped with spear, coping, sheepfoot, and pen blades..