1925-26 broadside from European and EY rabbis, including the (late) Chafetz Chaim, Rav Kook, Rabbi Meir Hildesheimer, and others, against mechitzaless shuls.
The English- Yiddish supplement from the Agudas Harabbonim points out that even German and Hungarian Reform don't have that.From the archive of Rabbi Moshe Mescheloff.
