I was interested to see Steve's mention of the low 3 digit number on his early Landmark card. Shown below is a card that I found in a machine when I sat down at Arizona Charlies last month. It has 6 zeros and a two digit number! Definitely the earliest number I've seen on a card. Can you top this???

I'm sure somebody must have one with all zeros that they got from a friend at a club [g].