This is the "Old Syriac Curetonian" text, which is a 4th-5th century Syriac manuscript containing parts of the four gospels.  This database contains the text of the Old Syriac Curetonian manuscript, which is a disputed Syriac text containing the text of the four gospels.  The current text was entered by Ewan MacLeod and proofread against the book "Old Syriac Manuscripts" by Lewis, which is an invaluable book showing the  differences between the Sinaitic and Curetonian manuscripts. This book and the text itself are now in the public domain.

Ewan Macleod is a skilled Aramaicist, teaching biblical Hebrew and Aramaic at his website, jesusspokearamaic.com  He has also contributed to multiple Aramaic User Bibles here on the Accordance Exchange.  Visit his website for a wealth of resources regarding Aramaic, and biblical studies.