URL：https://static.vecteezy.com/system/resources/previews/010/761/139/non_2x/ob-logo-o-b-design-white-ob-letter-ob-letter-logo-design-initial-letter-ob-linked-circle-uppercase-monogram-logo-vector.jpg
掲載元：https://www.vecteezy.com/vector-art/10761139-ob-logo-o-b-design-white-ob-letter-ob-letter-logo-design-initial-letter-ob-linked-circle-uppercase-monogram-logo
