Hello,
as Ulfberth said, this sword looks like a german IOD aA (Infanterie Offiziers Degen alter Art), which means Infantry Officer Epee old type.
The short ricasso means normally around 1860 or earlier but there is no signature and other decorations and the hilt is not the same as on my IOD.
references:
http://www.zietenhusar.wg.am/iod_aa/
Regards,
Roland