Eastern European/Polish daggers dressed in bone

[awdaniec666]

Polish nobility wore a saber at the belt and often used a warhammer as a walking stick. Daggers (even more this decorated) were something a Polish nobleman would not wear, as it was considered dishonorable and there are accounts of that and comparisons to the Italian culture.
I have red about those daggers described in Polish literature between 1890-1939 as souvenir objects at best and saw similar on ebay some time ago.
Of course there were daggers in 18th century Poland - I highly doubt these are those. I own copies of most books about Polish arms and armor ever printed - these daggers are not included.
Lastly, high prices alone are no indicator of historic value.