Here are the photos of the bayonet I have that I believe will fit on your rifle. Just verify it for sure as you never specifically named the type rifle you have other than being Yugo.
The close up of the lettering shows grease, not rust. There is still some cosmolineon the blade and in the scabbard. This one does not have a frog.
I have realized that your Chileanis not the Chilean I "need" but as it is a type I do not have I'm still interested in it. I have an 1895 mauser that is missing it's bayonet.