I got email from George Feliciano who is trying to recreate the label on a Navy Type 19027 6v dry battery used in the DAV-2 (perhaps also in MAB). The photo in the DAV-2 manual isn't quite good enough to make out all the words.

FYI - George's MAB display is here

If you have an original CNC-19027 (CNC for National Carbon Co.) battery and can take a photo please let me know or reply directly to George -  cozmo1944@gmail.com