I remember these boxes vividly. (The pack wrappers, not so much. We threw them out as soon as they were opened.) This particular box includes a reference to the pin-ups that were inserted into packs in some (but not all) series.
1967 was the first year I collected baseball (and football) cards. Prior to that, my brother and I collected non-sports issues like Batman, Beatles, Green Berets, McHale's Navy, Munsters, and especially War Bulletin and Combat cards.
1967 was also the first year I followed Major League baseball. I had played youth baseball for a summer or two before that, but it never occurred to me to collect cards or watch/attend pro games until '67.
As is the case with most collectors I would guess, my first set is also my favorite set. Although I didn't start collecting until (I think) May, through trading with friends I was able to get all the cards that were issued in March and April, but were no longer in stores. By the end of the summer I had all but the infamous high numbers.
When I discovered card shops and shows at the malls in the 1980s, I was able to get most of the high numbers (at an exorbitant $1 each!!!). By the time I started this blog I had all but 5 cards, then snared Maury Wills and Brooks Robinson a few years ago, and Tommy John earlier this month.
The Seaver and Carew rookie cards? They will most likely remain as my Holy Grail.