This book was published by the author’s great-grandson, Rabbi Shraga Feivish Schneebalg (known as Favish).
Rabbi Pinchas Chaim Horowitz was born in 1858. He was the was the head of the Beis Din (Rabbinical Court) of Grosswardein in Romania. He died in Oradea, Roumania, in 1938. A series of books containing his writing was published by his great-grandsons, Rabbis Mendel and Shraga Feivish Schneebalg.
Rabbi David Zvi Schneebalg was the head of the Beis Din (Rabbinical Court) and Yeshiva of Vishnitz. The Schneebalg family lived through the Russian invasion of Poland in 1939 and the subsequent German occupation when they were able to escape. Rabbi David Zvi came to Manchester and became the rabbi of the Machzikei Hadath in Manchester in 1947. He eventually moved to Bnei Brak where he died in 1968. His son, Rabbi Menachem Mendel Schneebalg, who lived to be 100 years old, succeeded him in Manchester.
Rabbi Menachem Mendel’s younger brother, Rabbi Shraga Feivish Schneebalg married Freidel, the only daughter of Rabbi Moses Munt. Rabbi Munt came to London in 1952 and established a Beth Hamidrash Damesek Eliezer (named after his father, I think) in North London. Rabbi Shraga Feivish was the spiritual head of the Vishnitz minyan in Stamford Hill.
My copy has an accompanying letter from Rabbi Shraga Feivish Schneebalg tipped in, giving this copy to his in-law, Rabbi Chaim Shlomo Rottenberg, an important Chassidic Rebbe, son of a Rebbe and brother of Rebbes.
Jewish Miscellanies 
Thank you again for this interesting post. I just wanted to point out that Grosswardein and Oradea are different names for the same town! At the same time, I wondered if it would be possible to meet when you are in London, to show you some Anglo-Judaica books and pamphlets that may be of interest to you. Best wishes Yissochor Marmorstein