Epstein says in his book "Legend" that it was in Dallas before the Walker shooting. See pages 202 and 317 of "Legend" book (hardback).
But Epstein could simply be wrong. He gets other things wrong in his book.
According to Bugliosi, (page 777 - Reclaiming History) LHO checked it out of the Oak Cliff branch library on 11/6/63. It was due back on November 13. But three months after the assassination it had not been returned. (CE 2642, 25 H 901-902).