A used collection of past exam questions from Okayama University of Science for the 2021 entrance exams. I only looked through it briefly after purchasing it used. There appear to be no markings, but there are some scuff marks from being in a bag. - Title: Okayama University of Science Entrance Exam Questions 2021 - Series: University Entrance Exam Series 535 - Year: 2021 - Contents: Past exam questions and answers from the last three years - Publisher: Kyogakusha Thank you for looking.