Madame du Barry followed her predecessor in her taste for Sèvres porcelain. In 1774 she commissioned a new service to be delivered at Versailles. Given the date is quite possible that this was the last service delivered to the royal mistress before her royal lover died.
The blue chosen matches that of a service delivered to Louis XV 23 years earlier, in 1751. Actually, Madame du Barry had commissioned another blue service in 1770 with a different design.