Round file jimping is a more pronounced form of jimping that is more tactile as well as decorative than straight file jimping.  This style of jimping can be had on a variety of my knives and is not limited to a straigh spine knife.  Round file jimping can be had on the Montana, The Coyote Works 1.0 and Coyote "Pup" as well as the Bush knife and Jasper.