According to the American numismatist Robert W. "R.W." Julian 49 medals were struck by the United States Mint in Philadelphia in silver /43 on October 27, 1909, and 6 more on November 2, 1909/.
Silver.
Size 77 mm.
Medal was designed by Charles Barber and George T. Morgan.
Reverse...
1909americantablemedal1909 honorary commercial commission of japan medal1909 japanese visit to san francisco medal1909年日本實業家來米歡迎紀念章
commercial commission of japan visit us medal
japanese businessman visit to san francisco medal