General dojinshi for men Military [Preliminary issue] Introduction to Artillery Design Technology - Army Artillery Development Brief History - Preliminary Version
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 男性向一般同人誌 ミリタリー 【準備号】 火砲設計技術入門 -陸軍火砲開発小史- 準備版 / 川口一