Tag: Hidetsugu Yagi Observer Voice

28 January: Remembering Hidetsugu Yagi on Birthday

Hidetsugu Yagi (28 January 1886 – 19 January 1976) was a Japanese

19 January: Tribute to Hidetsugu Yagi

Hidetsugu Yagi (28 January 1886 – 19 January 1976) was a Japanese