The coins from Broken Token differ from the official ones from Repos Production: They have different backs particularly for the coin values 1 and 6. Coin value 6 shows a palm instead of the feather which the official coins (both cardboard and metal) feature.
"The Broken Token is proud to bring you these exclusive ultra-premium game upgrades for use with 7 Wonders Duel.
These finely-minted coins are crafted from zinc and nickel with high-relief 3D detailing and a hand-buffed finish.
Included are 14 "one" coins, 10 "three" coins, and 7 "six" coins each with a raised-edge lip for easy stacking. This set will replace the full set of 7 Wonders Duel paper coins."