I collect mostly AM90s and AM95's, but can try to share some info about the fakes that I've seen while shopping in Asia. I often spot fakes by looking at the shoe from a side profile photo, such as toebox areas that aren't well rounded, funny looking air bubbles, or midsoles that are too thin or painted poorly.
The birdseye photo of the AM1 you're interested in buying makes it hard to evaluate some of the more common fake features that I've seen before. The photo is also a bit grainy, so it's hard to compare the fabric/materials to real AM1's that I've seen. I'm guessing you're trying to buy a pair of these Euro AM1 Burgundy's? http://shellynishoes.co.uk/Mens-Nike-Air-Max-1-Shoes-Burgundy-4822.html
The seller doesn't have any other photos to share with you or isn't willing to take more photos? I'd be cautious if the seller won't give you other photos.