signed, dated, numbered and described in pencil on the reverse: 'Virus: non-specific mammalian encephalitis | paramyxovirus (MEP) | family: Paramyxoxiviade | Aleksandra Ska, Pandemia, 2015/2021 | 30 x 40 cm, papier archiwalny, ed. 2/3 + A.P. | [artist's signature]'