Thanks James! Box is 4-1/4" H x 6.5" W (front to back) x 15" L (left side to right side). Yes.. spalted wood is fungus which leaves patchy areas. If it had black lines it would be Ambrosia which is rare. This is where the Ambrosia beetle bores holes in the wood and carries the fungus in leaving track marks. Even more rare is Spalted wood that has different fungus colors and this box was made from it. Cheers!