With larger than normal dimples, this circa 1920 rubber core ball is stamped with the owners name and is missing a significant piece of its cover. Even so, the ball will display well if displayed with the opposite pole up.  McGimpsey noted a "Seven Eleven" ball in his book, but did not identify the maker, which remains unknown. McGimpsey did not not a "Diamond Seven-Eleven" ball which is what this ball is marked.