21:39:20
The printing is of interest. The printer, Abraham Proops, was a member of the famed Proops family of printers in Amsterdam. Founded by Solomon Proops (d. 1734) in 1704 his sons, Joseph (d. 1786), Jacob (d. 1779), and Abraham (d. 1792) continued to operate the press after him. In 1785 Joseph Proops sold most of his work to Kurzbeck of Vienna, and when he died a year later his widow and sons - for some time in partnership with Abraham Prins - continued printing on a small scale until 1812. From 1774 to his death Jacob Proops worked on his own; his widow and sons continued along until 1793 and until 1797 in partnership with Solomon (d. 1833), son of Abraham Proops; Solomon worked alone until 1827. Abraham Proops, the publisher of this work, had been active on his own in 1776–79; afterward he removed his business to Offenbach, but his son, who worked with him, returned to Amsterdam at his father's death. David, a son of Jacob Proops, printed from 1810 to 1849 in partnership with H. van Emde and his widow, when the press was sold to Levisson who continued it until 1869; the Levisson brothers remained active until 1917.
הסכמות: ר' פנחס הלוי איש הורווויץ, פ"פ דמיין, כז תמוז תקמ"ג; - [חלק א] ר' אהרן ב"ר הירץ שלאס, אפענבאך, א דראש-חודש כסליו תקמ"ד. - [חלק א] על מסכת סנהדרין. דפוס אברהם פרופס כ"ץ ובנו שלמה, בשנת נ'דבות' פי רצה נ'א ה' ומשפטיך למ'ד'ני [תקמ"ד].