Here's a comparison with the Legendary Auctions card included:
Order left to right:
1. Legendary Auctions (from Frank's link)
2. Legendary Auctions with auto correct (because original had too much exposure)
3. Definitely Authentic
4. Reprint/Counterfeit
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Backs:
1. Legendary Auctions
2. Authentic
3. Reprint/Counterfeit
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If you have a known authentic, please post a scan/photo of the front and back.