the red tip ones were the last 'new' from FPE.
....and the ones with the magenta tags are newer than the yellow tagged ones.
Stabloks were not available for a while in the early '80s. (I was told that they'd "Lost their UL"). When they showed again,, they had those magenta colored labels.
Actually they were challanger breakers, I keep a few if anyone is interested. But the story is getting better. I ventured into the garage today, I guess they ran out of staples, lots of the 12/2 put up with finish nails, seems to be working, guess you just got to hit them babies dead center. Honest, I'm not talking bent up nail, I'm talking nails dead center in the romex.
electricianjeff