Q. Is it true that a woman during her period, should not look at the letters of an open Sefer Torah?
A. Remah (O.H. 88: 1) and Mishna Berura (ibid) indeed rule that at that time they should not look at the letters of an open Sefer. However, they may see it when closed. They should also not touch it then. (See Piskei Teshuvos 88: 9).
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a