HOW TO SPOT A FAKE 1 OZ GOLD BAR what to look for

4 lot 1 gram fine gold bars valcambi apmex suisse pamp fortuna argor heraeus the seller is ranger6230 and is located in this country us. Manufactured in Switzerland and are world-renowned for their superior craftsmanship. This item is in the category Coins & Paper Money\Bullion\Gold\Bars & Rounds.