This Sept. 25, 1970 typed letter is signed by Tom Landry in black felt tip pen. The letter is on Dallas Cowboys letterhead and is in response to an autograph request. Pictured is the EXACT signed item and authentication you will receive. AUTHENTICITY = This hand signed photo comes with a PSA/DNA Numbered and Tamper Proof authenticity sticker on the Autographed item and a PSA/DNA Certificate of Authenticity (COA) with matching serial number (pictured) (a $50 Value). PSA/DNA is the oldest third party authenticator in the autograph industry, so buy with confidence, and get The REAL DEAL!