I think you will find the sword in the photo is WW1 Imperial German. The markings (and I am not an expert in this field) as I recall indicate the unit it was issued to.

For a similar but not identical sword, see:

http://cgi.ebay.com/GERMAN-WW1-WWI-OFFICERS-SWORD_W0QQitemZ6508498480QQcategoryZ13965QQrdZ1QQcmdZViewItem