Karl Mecklenburg autographed photos are a must have for any Denver Broncos man cave, home or office. This 8x10 photo has been authenticated by Seller and comes complete with a Certificate of Authenticity (COA) and tamper-evident sticker. The unique Certificate Number can be verified online. This glossy 8x10 photo ships securely in an 8x10 plastic toploader for protection. Relive the moments in Denver Broncos history with an iconic shot signed by Karl Mecklenburg. Shop with confidence as this Karl Mecklenburg signature is 100% authentic and backed by Prime One Sports 100% Money Back Guarantee. Prime One Sports is your one stop shop for certified Karl Mecklenburg and Denver Broncos signed sports memorabilia. Items ships same day.