TWO VOLUMES BOUND TOGETHER. RARE monograph on siddur in two parts by an eminent German theologian and historian Abraham (Adolf) Berliner (1833-1915). 235x160mm [VIII+90] + [VIII+79] pages (+2). Quarter-cloth rebound Hardcover. Cover and yellowing. Small peeling-mark on cover inner edge near spine. Spine edges bumped. Several pages age-stained. Pencil mark near text on some pages. Front whitepage and pages I-IV upper corner wrinkled. Inner cover and pages slightly yellowing. [SUMMARY]: This extremely rare book on various aspects of Jewish prayer book and liturgy is in good condition.