Stumbled upon Blue Bird (a subsidiary of Bergman Tools) a few years ago, and liked the battery plier. Papaw sent me a photocopy of a Bergman tool catalog he had, and they had two PAGES of car battery specific tools! The hunt was on!
I've managed to find all the pliers, and restored them to the original blue handle color. The only tools that I'm missing is the twin brush post cleaner, the separate spring post cleaner (#22), and the battery lifting/carrying tool.
The tools are: left to right, top to bottom
#20 Clamp spreader and cleaner #25 Plier
(2) #11 Hex nut and post cleaner #21 Post clamp puller
#12 Universal battery plier #52 Plier
#14 Plier