http://en.wikipedia.org/wiki/Russo-Japanese_War
The Japanese military went Western at this time and the uniforms of the troops and apparently nurses uniforms as well.
This card looks like a summer/winter uniform or dress/working uniforms.
![](http://2.bp.blogspot.com/_7RgNOqwRjqk/S9rTGNXFAyI/AAAAAAAATbY/vyWCFF1j688/s320/%E9%85%92%E4%BF%9D%E5%A5%B3japan1905a.jpg)
Great caps. Maybe they inspired the costumes of the characters in the Anime series Trinty Blood.
![](http://4.bp.blogspot.com/_7RgNOqwRjqk/S9rTFvRR7WI/AAAAAAAATbQ/UTFuSNyN5Q4/s320/NichiroKangofu.jpg)
The one below says "hold card to light" which may reveal a risque image related to the figure in the hospital bed below. I can't tell.
![](http://3.bp.blogspot.com/_7RgNOqwRjqk/S9rTFfoBMDI/AAAAAAAATbI/4PRfSXM6ekI/s320/8006755_149c576545_o.jpg)
This card below appears to show a working gown uniform over a darker uniform.
![](http://2.bp.blogspot.com/_7RgNOqwRjqk/S9rTFe3kd2I/AAAAAAAATbA/QpTIAT4cPJw/s320/2002_3600_s4293_Copy.jpg)