Weekday readings from Easter to Pentecost and Saturday/Sunday for other weeks (esk)
Gospels lectionary manuscript on parchment; 1 leaf, 2 columns, 28–29 lines per column. This is a single leaf owned by a private party; the major part of GA Lect 1663 is at the University of Chicago (Goodspeed Manuscript Collection, Ms. 879). Two other leaves are kept in McGill University (Ms. Greek 11) and Uppsala University Library (Fragm. ms. graec. 1).