Vintage fiddle bow knife & cutting board, leather cordage, solid wood

This cutting board measures 18 and three-quarter inches by five and three-quarter inches by 1 1/2 inch. I believe it is made of chestnut and has been very well cared for. It has some light wear consistent with age, but is in really nice vintage condition and the blade is still quite sharp. The plastic guard has broken into two pieces. See photos.