Sanshoki (Tricolor Flag) October 2020 - February 2024, 21 volumes in total. This is the booklet "Sanshoki" published bimonthly by the Correspondence Division of Keio University as supplementary material. Articles are included to help students cultivate broad knowledge and assist with their studies. There are no noticeable scratches or stains, and the condition is good, but only the August 2022 issue (No. 843) got wet, and the front and back covers are damaged. The contents can be read without any problems. It is recommended as there are many descriptions that will be helpful for those who are planning to write a graduation thesis at Keio Correspondence. The set of 21 volumes will be sold. Anonymous shipping via Rakuraku Mercari. #Sanshoki #KeioUniversity #KeioCorrespondence