What a generous Mum you have there, I watched this auction end and it was listed as a Turkish sacrafical knife from memory but whenever I hear that I take it with a grain of salt. I too would say Trousse as there was a Chinese Trousse that I bought from the same seller and as he deals in arms I would hazard a guess that there was a collection of unusual trousse that he purchased and has sold on.
A lovely piece and unique too I would say, I too saved the images for future reference.
Nice work
Gav
PS I am looking for a loving home where mum would spend all her money on edged weapons for me too....
