Title: 日本歴史地図 (Nihon Rekishi Chizu) — "Historical Atlas of Japan" Subtitle: （新制版） — Shinsei-ban = "New Edition" Publisher/Editor: 三省堂編輯所編 (Sanseidō Henshūjo hen) — compiled by Sanseidō Publishing Editorial Department Bottom imprint: 東京・三省堂・大阪 — Tokyo / Sanseidō / Osaka Approval seal: 認 / 教図登録 No.979 — Ministry of Education certified textbook/map registration stamp Dating: Sanseidō's Nihon Rekishi Chizu was published in multiple editions from the Meiji era through postwar. The "新制版" (new system edition) terminology and MOE approval seal format point to early postwar, likely 1947–1955, coinciding with the post-Occupation educational reform period when "新制" referred to the new school system established under the 1947 Fundamental Law of Education.