Yukawa blackboard unveiling
· Graduate School of Science, Osaka University, Toyonaka, Osaka Prefecture, Japan
Wikimedia Commons · 使用の際は、「写真提供：大阪大学南部陽一郎記念室」と明記してください。 Nambu attended the unveiling ceremony for Hideki Yukawa's blackboard at Osaka University's Graduate School of Science and signed it.
