"Itur Sofrim." Rabbi Kook's first work. Interesting approbations

"Itur Sofrim." Rabbi Kook's first work. Interesting approbations
Itur Sofrim [first section]. "To increase and honor Torah and to unite the factions of Israel, " by Rabbi Avraham Yitzchak HaKohen Kook. Vilna, 1888.
40 pages. 23 cm.
Anthology of Torah novellae. Rabbi Kook's first work, written when he was only 23 years old. Many prominent approbations from Russian and Lithuanian Torah leaders. First approbation by Rabbi Naftali Zvi Yehudah Berlin (the Netziv), who writes that he worries lest the author's plans cause him "bittul Torah, " though his father-in-law [the Aderet] promised to assist him and promote the project. 
This is the first section. One more section was printed about a year later, and then no others were published.
Original binding. Aging stains. Light tear with loss of text on the last page. Moderate-fine condition.