Saber Yatghans are a rare version but from time to time appears on the market. See for example below.
For more details on this sword please see:
Saber Yataghan
Regarding the sword you posted The bolsters are a later addition as one can tell from the big difference in its style and condition compared to the grip strap. This may still be OK as bolsters and/or grip straps were regularly replaced when worn, but it may also indicate that the blade and the handles are a late marriage.