Hi Tina, thanks for writing in. If it's an antique gold ring the marks could have worn away over time. Have you looked carefully inside the box mark with a magnifying glass of at least 10x magnification or a jewelers loupe for any tell-tale traces of a mark?
Not all solid gold rings are marked with a standard mark. The metal marks act was only passed in 1906 in the United States, so before that date jewelry manufacturers were not legally required to use a gold standard or sponsor's mark for that matter and as a result there are a lot of misleading marks on jewelry around today.
If you get one of those acid testing kits, that come in a little wooden box, you can test the metal yourself, or alternatively, your local jeweler can acid test.
