Neither of those photographed are the Type 100 bayonet. A real one is posted below.
Also, I realize collectors have called this a Type 100 bayonet forever, but original documents found in Japanicon a number of years ago correctly identify these as a Test type 1, which were to be used as a side or fighting knife by Rangers and Paratroops as documented and published in the excellent reference book "Bayonets of Japan" by Ray LaBar.