Shirts are printed on both sides and are available in Medium, Large, X-Large, and XX-Large. We have a limited supply of these autographed shirts and they will not be reproduced. With each purchase you will also receive a 4x6 photo of Bob during the autograph signing as pictured in this ad. Being that Bob signed more than one shirt the photo in this ad is for general reference. His signature will vary from shirt to shirt. All shirts are signed on the front upper corner as shown. Bob Riggle started his career in the golden age of drag racing. Bob took to the wheel of the Hemi Under Glass in 1966. The '68 Cuda featured on this shirt was the first supercharged version of the Hemi Under Glass. Bob made his final wheels up run in the '68 car ending a career that spanned 50 years. Jay Leno / Leno's Garage called the Hemi Under Glass one of his all time favorite cars.This is the official Hemi Under Glass account. All items are authentic Hemi Under Glass merchandise. We took over the Hemi Under Glass brand at the end of 2016 and the new driver is Mike Mantel.We do combine shipping and the item with the highest shipping cost will be the total shipping cost for any amount or type of items. Free shipping on additional items! If charges more just let us know and the difference will be refunded.Shipping for any order shipped to any address other than the United States will be charged our cost. If you are charged more we will refund the difference.Please see our other listings for t-shirts, caps, pins, coins, signs, license plates, decals, patches, prints, and posters. We also have some items autographed by the original pioneering driver of the Hemi Under Glass “Wild Bill” Shrewsberry, Bob Riggle (the 2nd Driver of the Hemi Under Glass), and Mike Mantel, the current driver of the Hemi Under Glass.We appreciate your support!Thank you!