Black marks are from a Sharpie marking pen. Inclusion is shallow with great character. Natural edge is nicely rounded.

HouseofBurl.com #6610 Black Mulga Handle Block Acacia citrinoviridis [.98 x 1.4/1.8 x 5.3"] $29.99 Birdseye Curly Figure Hard Stable Wood Hard Sapwood Ironwood Natural/Birdseye Edge Old Dry Wood