Vintage Rare String Bamboo Valiha Tube Zither

I found prices online for similar instruments between $39.76 and $235.00. I thought this was damaged because of the rather large crack that's visible in the photos, but I found a YouTube of a man playing one that had cracks in the exact same places and it sounded fine. (We first thought it was a Kunnibit but it's not - its a Valiha. But the tags still say Kunnibit.)