Tolkien wrote this letter to Stanley Unwin about a solicitation made by Rütten & Loening Verlag. This German distributed house had enquired around a conceivable German interpretation, and approached Tolkien for a Bestätigung, an affirmation that he was Aryan. Tolkien approached Unwin whether they do this for all individuals of which they need to interpret a work, or in the event that it was a direct result of his German sounding name. Despite the fact that he could give such affirmation, he declined to do as such.
He had set up two drafts in answer to Rütten & Loening, and approached Unwin for his assessment, as he would not like to close the entryway on a German interpretation without Unwin's consent.