The first two books remind me of when I first started reading comics, buying them from the local bus station newsstand.
The stall usually only had the month's UK-distributed issues, but once, in '74 or '75, they had quite a stack of older DCs, defaced by felt-tip pen prices which were easily as bad as the ones you've shown. I recall buying Forever People 2, Teen Titans 23 and Metamorpho 10. Absolutely thrilled to get hold of them, even though they were in quite ragged condition.
Even though I'm an OCD condition nutjob and primarily a digital reader now, that remains a very nostalgic starting point.