antique nippon cobalt blue ware late 1800s

thanks to the backstamp i was able to date these as pre 1890s. made of fine bone china, you can see right through each piece. i thought they were two handled tea cups but with research i found out they are soup or boulionne bowls. these were made for the japanese navy.
update:
found a great nippon identification site...here's the link:
http://www.waiapo.com/orientalcats/japan_marks-nippon.html