Two Books by the Chafetz Chaim - First Editions

Two Books by the Chafetz Chaim - First Editions
Two books by the Chafetz Chaim in one volume - first editions, published anonymously:
1. Chafetz Chaim. Laws of derogatory speech and talebearing. Vilna, 1873. First edition.
2. Shemirat HaLashon (Part I), complement to the book Chafetz Chaim, words of inspiration and ethics on guarding one's tongue and Torah study. Vilna, 1876. First edition.
Stams of R. Yaakov Landau Rabbi of Bnei Brak.
First books of R. Yisrael Meir HaKohen of Radin, the Chafetz Chaim, published anonymously (the author's name was printed in Russian at the foot of the title pages).
Two books in one volume. Chafetz Chaim: 5, [1], 8-81 leaves. Without [4] leaves of subscribers added in some copies. Shemirat HaLashon: [2], [5]-76; [3]-14 pages. Lacking second leaf, with approbations and list of abbreviations. 22 cm. Good-fair condition. Some leaves (primarily in Shemirat HaLashon) printed on dry, brittle paper. Stains. Open tears, affecting text in several places at end of Shemirat HaLashon. Final leaf torn and detached. Stamps. Old binding, worn.