I think this might be it. I’ve been trying to remember which model ping putter I first started golfing with, this might the one. Need to track down one down.
I have played a few over the years like Ping Pal 2, Ping Zing, Ping Pal 4, Ping Anser etc. I currently have this one, The Ping G2 Anser but not sure when it came out.