This is "Arithmetic for Ordinary Elementary School Third Grade Students, Volume 2," a national arithmetic textbook used from 1935 to 1942. Commonly known as the "Green Cover": This name comes from the bright green cover, which replaced the previous black cover. The content was significantly changed from the previous logical and abstract content to content that respected the psychology and lives of children. As this is a historical item, please understand that there may be some wear and tear. Thank you for looking. #OrdinaryElementarySchool #Arithmetic #GreenCover #OldBook