Piccardi
{{PatentInfo |Inventor=John M. Sherrer |Assignee=Donald L. Skene, Arlo S. Stoops |Country=US |ApplicationNum=136906 |ApplicationDate=1947-02-14 |PatentNum=D151661 |PatentDate=1948-11-02 |PriorityDate=1947-02-14 |Titolo=Design for a calendar pencil |Mar...