Yes and no. All second contract (and later) blades lack the notch, but all blades lacking the notch are not necessarily second contract blades. The PI bayonets were being introduced right at the transition between the first and second contract. LanCay didn't have enough blades with the notch to finish the first contract run, and they were allowed to use the blades without the notch to finish out the contract. If my memory serves me correctly, there were 1060 or 1090 of the second contract style blades used to finish out the first contract. These can be recognized by the LanCay marking on the blade and the bight finish. All Lan-Cay military contract bayonets from the second contract on have black oxide blades. The key word here is military contract. Lan-Cay did/does make PI and later variation bayonets with bright blades but they are not military contract pieces.
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Last edited by porterkids; 11-23-2011 at 11:30 AM.
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