Help! Silvermark on spoons

[starcountry]

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I've inherited a set of six coffeespoons from my husband's grandmother and I have researched the marks that are there, but there are only four marks instead of five. The city mark isn't there. Does that mean that they are a reproduction? What I think the marks mean are sterling silver (the lion passat), 1786 (date letter), the 1786 - 1821 duty mark, and the marker's mark of GG, which I think would mean George Gray, reg. 1782. Please let me know if this is correct. Any help is greatly appreciated. Thank-you.
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[Granmaa]

These are bright-cut Old English pattern teaspoons made in London 1791.
That is the mark of George Gray; he often overstruck his mark on other maker's marks. If you look closely you'll see signs of another mark.

Miles
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[starcountry]

Thank you so much. So are you saying that the absent of the city mark is not critical or unusual?
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[Granmaa]

With small spoons such as teaspoons, salt spoons etc the town mark only began to be used around 1820.

Miles
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