Wow, what a great thread bringing up the past and this set. I grew up in the East (San Francisco) Bay area and was actively collecting at the time. I recall getting the cards in wax packs, by series, towards the beginning of the season in Castro Valley, and then mixed series by the end of summer in Alameda. I do not ever recall ever seeing any of the blue checklists in any of the packs I purchased, but I do remember buying them as a set the following year at the Acalanes show (it could have been from an out of town vendor). Around '75, I remember buying a few cases of 3rd series wax from longtime collector Lou Chericoni (the series with Mays in it) and I busted open most of those at the time to make full series runs. I held onto about a half dozen boxes, until the last one sold off about 15 years ago. Wish I'd saved a few more of those boxes.....
