I cannot read languages written in non-Latin alphabets, such as Hebrew, Greek, Syriac, and Armenian, so I will only attempt to catalogue them if I have help from a specialist. I do, however, enounter them periodically. Ethiopian codices are fairly popular with private collectors, for example, because a complete codex (usually 19th-century, but still medieval in character) can be bought for the price of a single medieval Western illuminated leaf, and because the wood boards of the bindings are often not covered, leaving the spine and sewing structure clearly visible: they therefore make very good teaching tools.
I encounter with some frequency (in person or online) leaves from an Armenian Lectionary dispersed by Otto Ege (as shown above). Leaves of it were not included in his famous portfolio of Fifty Original Leaves, but they were in three of his earlier portfolios: Original Leaves from Famous Bibles: Nine centuries, 1121 A.D. - 1935 A.D., 'Series A' issued in 1936, in an edition of 200, and 'Series B' issued in 1938, in an edition of 100; and Fifteen Original Oriental Leaves of Six Centuries issued in  in an edition of 40 copies . If you meet with a leaf of an Armenian manuscript on paper, written in two columns of 33 lines, there is a good chance that it comes from this manuscipt.