Single leaf from an antiphoner. Square notation in black ink on red five-line staves with F- and C-clefs; 6 lines per folio side. Rounded textual script suggests the sixteenth century or later. 50.5 x 37.5 cm, with a principal writing space of 37.2 x 24.5 cm. Acquired at an estate sale in California, USA. Currently in the private collection of S. Helak (2018).
Fragmentarium entry: https://fragmentarium.ms/view/page/F-io1s