Need some help identifying pre-ban magazines:

1) I'm assuming that the 30 round Adventure Line with black followers are pre-ban because they were produced in the 60s and 70s only. No internal or external dates. Is this correct?
2) I am assuming that 30 round Sanchez with black followers are pre-ban because they were made in 80s and "early" 90s. No internal or external dates. Is this correct?
3) What about 30 round Labelle's with black followers? They were made in 80s and "mid" 90s. No internal or external dates. Anyway of telling pre-ban or not on these?
4) Are any of these "safe" to purchase in those states with restrictions?

Thanks!

IIRC MA only now.  CA killed pre-ban mags and NY SAFE act is 'tarded.

I just read the FAQ thread and still not clear on pre-bans. Somebody sent me a link but it disappeared when I opened it. If you can, please send that again or post it here.

I’m pretty sure that anything after 94’ has to have a date. So no date = pre ban. Now I’m not sure on what states that is relevant and/or still useful.

I was told the same thing by someone else. Thanks!

There are mags from companies that started after the ban sunset that didn't bother with dates. Cproducts/ACS come to mind and they made mags for other retailers like Bushmaster/BFI,  AR Stoners, and others I can't think if right now.