Will noted discrepancies in the signatures on the memos, and had questions about the letterhead, the proportional spacing of the font, the superscripted "th" and the improper formatting of the date. Will requested other documents to use for comparison. Linda James was "unable to reach a conclusion about the signature" and noted that the superscripted "th" was not in common use at the time the memos were allegedly written; she later recalled telling CBS, "the two memos she looked at 'had problems.'" James Pierce concluded that both of the documents were written by the same person and that the signature matched Killian's from the official Bush records. Only one of the two documents provided to Pierce had a signature. James Pierce wrote, "the balance of the Jerry B. Killian signatures appearing on the photocopied questioned documents are consistent and in basic agreement", and stated that based on what he knew, "the documents in question are authentic". However, Pierce also told Mapes he could not be sure if the documents had been altered because he was reviewing copies, not original documents. Marcel Matley's review was initially limited to Killian's signature on one of the Burkett documents, which he compared to signatures from the official Bush records. Matley "seemed fairly confident" that the signature was Killian's. On September 6, Matley was interviewed by Rather and Mapes and was provided with the other four documents obtained from CBS (he would prove to be the only reviewer to see these documents prior to the segment). Matley told Rather "he could not authenticate the documents due to the fact that they were poor quality copies." In the interview, Matley told Rather that with respect to the signatures, they were relying on "poor material" and that there were inconsistencies in the signatures, but also replied "Yes", when asked if it would be safe to say the documents were written by the person who signed them. Both Emily Will and Linda James suggested to Mapes that CBS contact typewriter expert Peter Tytell (son of Martin Tytell). Associate producer Yvonne Miller left him a voicemail on September 7; he returned the call at 11 am on September 8 but was told they "did not need him anymore". September 8 segment and initial reactions The segment entitled "For the Record" aired on 60 Minutes Wednesday on September 8. After introducing the documents, Rather said, in reference to Matley, "We