Manuscript
Found in the Dead Sea Scrolls, it contains 12 columns of original psalms. It was bought by E. L. Sukenik in 1947 from a Bethlehem antiquities dealer.
(The Origin of the Bible: Newly Updated by F. F. Bruce, J. I. Packer, Philip W. Comfort, and Carl F. H. Henry, 2020. Texts and Manuscripts of the Old Testament by Mark R. Norton, Page 162)