Alpha or Beta?

[Suicide_Waffle]

Alright, so recently a neighbor of mine cleaned out his house and found a crap ton of old magic cards in it. I was looking through them and I noticed a lot of them didn't have the normal set symbol or the small text (stating the copyright and such) under the name of the Illustrator. I was told by a friend that these are either Alpha or Beta cards, is there any way to tell the difference between the two?

[Merlin]

see here:

Magic The Gathering - ABUGames.com - Magic Singles, Boxes, Packs and Card Supplies

Alpha

- More rounded corners than any other Magic cards.
- Black bordered
- No expansion symbol
- No copyright date

Beta

- Near identical to Alpha except they have regular rounded corners
- Black bordered
- No expansion symbol
- No copyright date