Original sentence: Seals are used to authenticate documents, applied directly to the face of the document, or attached to the document, by cords in the owner's, or to a narrow strip of the document, sliced and folded down, as a tail but not detached from the document
Edited sentence: Seals are used to authenticate documents, applied directly to the face of the document, or attached to the document, by cords in the owner's Tincture (heraldry)=(heraldic colors)-, or to a narrow strip of the document, sliced and folded down, as a tail but not detached from the document