Mechkarei Avot on Pirkei Avot (Ethics of our Fathers). Rabbi Ya'akov Levinzohn. Chicago, 1915. (Bound with Sefer HaChinuch, Warsaw 1880, with stamp on title page – Betzalel Shor Chacham of Shtefanesht – in Latin letters).
Hundreds of glosses on the sheets of commentaries and novella, notes and elucidations. [Written at different periods of time].
Missing title page and introductions, and c. 7 leaves at end of book, pages 7-176 exist. 21.5 cm. Fair condition, wear and stains, unbound.