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I bring these hexagrams in the coat Of arms of Hamburg as an example for the prevalent usase of hexagrams in European heraldry.
This blog (by Zeev Barkan) is dedicated to the Star of David, its history, its various meanings and usages in different cultures. It includes thousands of pictures of Star of David, six-pointed stars, hexagrams, Solomon's Seals, Magen Davids and yellow badges,and served as a resource for three books and four art exhibitions.
In American numismatics the mullet is sometimes referred to as an American star, while the six-pointed version is described as an English star, but I've not been able to find any definitive source for such usage.
The so-called English star predominates on 18th and 19th Century United States coins, but it gave way to the American star for most 20th Century issues. Charles Barber's quarter dollar and half dollar of 1892 appear to have been transitional, as they feature six-pointed stars on the obverse and five-pointed ones on the reverse…