LARGE OLD BURLWOOD BOWL?

I have a large oblong wooden bowl, looks like a baby bathtub, but it's not.  I believe it is "burlwood".  i found this in the basement of a very old house I purchased, hanging on the wall.  There is a notch on one side, maybe for pouring?,,, It is obvious it was used much, and valued by the family, as it has a crack that was obviouslt repaired by hand made thin metal "clips" or "staples".  Many  valuable things were in the home, but none hung with care like this item.  This has a flar bottom, and is shaped much like an old bathtub, but is approx. 12" deep and 1.5-2 foot long at the rim, and 14 or so inches wide.