What jewelry company uses the makers mark cse or ose?

The jewelry company associated with the maker's mark "CSE" or "OSE" is likely to be from the designer or manufacturer known as "C. S. E.," which stands for "Charles St. Edmunds." This mark is often found on jewelry pieces that reflect a vintage or artisan style. If you have a specific piece in mind, verifying with a reputable jeweler or appraiser can provide more precise identification.