Psalterium_Sinaiticum
Psalterium Sinaiticum
11th century Slavic psalter
The Psalterium Sinaiticum (scholarly abbreviations: Psa or Ps. sin.) is a 209-folio Glagolitic Old Church Slavonic canon manuscript, the earliest Slavic psalter, dated to the 11th century (Serbian edition). The manuscript was found in Saint Catherine's Monastery in Egypt, after which it was named and where it remains to this day.