Packard 56 connectors

Hello e-buddies.....can someone tell me why there are two styles of these male connectors?
I know that the factory males had the little tabs on the back. They align the connector into little notches in the connector body. I have a nice tool aid crimp tool that crimps both wire and insulation at the same time, but I had to Notch the die to allow for that tab. Is there a Factory style crimp tool that will crimp both insulation and wire for the connectors with the tab...

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Author: Khuotakharma