Brake Booster type

Hello everyone. I posted this under the brake forum, but haven't had much luck this morning. I have a 68 Valiant and the previous owner converted the front brakes to power disc. Now we have a leaking Booster, but I can't tell who the manufacturer is for the master and booster assy. Is there a way to tell if it's Bendix, Kelsey, or Budd? Or even more, does it matter which one if you may plan on swapping out both the master and booster all in one shot?

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