why does the card say garry?
That's his name. Check his declaration in the court case. The card may be fake, but it's not an obvious fake - the Amiga logo is probably produced from a pre-scaled bitmap. On the high-res image, compare the amount of anti-aliasing on the ball and the text. The first is obviously artifactual from the printing, whereas the second is plainly a bitmap that was produced for some other purpose. The rest of the text isn't typed directly onto the picture (notice how it's rubbed off in places, and matches some imperfections in the surface of the card), and it's at the same angle as the top edge of the card.