"The transcribed text is that of a manuscript ... of which a photocopy is kept in the Royal Library, Copenhagen (Mong 519) . The original ... may be ....
"The transcribed text is that of a manuscript ... of which a photocopy is kept in the Royal Library, Copenhagen (Mong 519) . The original ... may be ... in the Library at Köke Qota [i. e. Kuei-sui, China]"