there's fakes out of the middle east, not so much trying to scam people but faked to give them more credibility as a unit for trade and worth their gold.
there's plenty of fake St. Gaudens that are legit on the composition, and off a bit on the weight and design, used in trade, likely made in Lebannon in the 1950s-1970s. it was more about giving the coin a recognizable face, and less about scamming collectors which is why they are usually very common dates.
these turned up in the mid 1970s here, after Ford repealed the Executive Order that Roosevelt used to call in gold in 1933 with Executive Order 11825. Americans wanted old U.S. gold and there types came flooding back in with the authentic ones.
Very possible it's legit right composition, a little heavy or a little light, and maybe even funky looking, they all were.