? on recently acquired Japanese swords

[knife7knut]

Originally Posted by koto

they are fake from China

Are there certain features that make this so obvious? I am far from knowledgeable in relation to Japanese edged weapons but have a considerable collection of Western pocket and fixed blade knives;many of them quite old and can usually tell the difference between a genuinely old knife and a simulated one.
I ask this because I am always wanting to learn more.