Athletic Promotional Events Larry Csonka Miami Dolphins Authentic Autographed NFL Helmet! This Athletic Promotional Events Larry Csonka Miami Dolphins authentic autographed NFL helmet comes with a Certificate of Authenticity that features a photo of the him signing the item and a matching hologram. Availability: This item takes 2-5 business days to leave the warehouse plus ship time. Note: Returns are NOT accepted on this item unless item is incorrect or damaged. Shipping Restriction: No PO Boxes or APO addresses. | |||||||||