Rob Gronkowski Autographed Signed Throwback Mini Helmet GA COA w/ Display Case. T his is a rare New England Patriots throwback helmet that is extremely hard to find signed by the legendary tight end Rob Gronkowski. The signature is beautiful and bold in blue sharpie. The mini helmet itself is in excellent condition. The Mini Helmet comes with a COA from Global Authentics (as seen in photos); however you can also verify yourself by going to.....And entering the number seen on COA and sticker... Thanks for checking out the item. Please check out my other items for sale and feel free to ask if you have any questions! The item "Rob Gronkowski Autographed Signed Throwback Mini Helmet GA COA with Display Case" is in sale since Monday, May 4, 2020. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Football-NFL\Helmets". The seller is "miwood66" and is located in Orlando, Florida. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Turks and caicos islands, Bangladesh, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Peru, Pakistan, Paraguay, Viet nam, Uruguay, Russian federation.