unusual PARTRADE folding knife with serrated blade, for horse grooming (?)

Here's another thing that's been laying around here in a drawer or a box someplace for several decades now, recently 're-discovered'. ;-) For all that time I've had it I've *never* known what it was really made *for* -- I think that question finally got answered today with a quick (overdue, I guess?) Google search of the name/number on its handle -- apparently it is a tool used to groom horses. [which actually seems to make more sense than anything else I've ever thought of to do with it...?]

It is nicely if typically made with 3 rivets holding its rosewood handles (one gilt stamped w/name and number) on and a 4th serving as its hinge, the rivets/ferrules look like plain plated steel (now a little rusty) but the blade is stamped "STAINLESS STEEL JAPAN". Its 'cutting edge' is only the serrated portion of the length of its blade, the pattern of which has been ground only into its topside -- the tip of the blade is entirely blunt, and its backside completely flat. While not a terribly 'sharp' edge overall, all the little teeth of the serrations *do* certainly seem like they could do some damage to something...trimming horse manes or tails seems absolutely logical enough, I guess...?

I grew up and have since always lived "in town", but I've always liked horses too, anyway...?? <lol>