Architecture In Helsinki Poster Concert Cleveland Agora June 10 This poster is 18 inches by 23 inches approximately. It is not in mint condition. It has edge dings and creases. It is signed by the visual artist Sean Carroll and numbered 20 of 55. The item will ship rolled in a hard cardboard tube. Conversion Table: Inches to Centimeters. 12 x 12 inches is approximately 30 x 30cm. 11 x 17 inches is approximately 28 x 43cm. 12 x 18 inches is approximately 31 x 46cm. 18 x 24 inches is approximately 46 x 61cm. 20 x 30 inches is approximately 51 x 76cm. 24 x 36 inches is approximately 61 x 91cm. For other dimensions please use the following conversion rate: 1 inch is equal to 2.54 centimeters, and 1 centimeter is equal to .39 inches. If you have any difficulties with calculating dimensions, please let us know. The math-geniuses at Postersultan will be happy to help you out! Or at least we can try. NO RESERVE. If you would like to know more about us, our business or our products please check out our about me page. Just click on the word Me next to postersultan. We accept Visa and Mastercard Discover and American Express. Delivery confirmation is used to track your item to insure that your item gets to its proper destination. WE DO NOT SHIP TO SOUTH AMERICA. ATLEAST 1 OUT OF 10 ITEMS NEVER REACHES ITS DESTINATION. All Residents of the state of Texas should add and 8.25% to the ending auction price for Texas State and County sales tax on this item you agree to all of our terms. They are more clearly stated in our about me page. You can see them by clicking on the word ME next to our username POSTERSULTAN. Powered by SixBit's eCommerce Solution This poster is 18 inches by 23 inches approximately. It is not in mint condition. It has edge dings and creases. It is signed by the visual artist Sean Carroll and numbered 20 of 55. The item will ship rolled in a hard cardboard tube.