So Bush sheathed it in a block of wood shaved into the shape of his own calf.

FORBES: Magazine Article

The traditional construction processes require both technical skills to design the building with consideration to its size, site and function, and aesthetic sense to select the lumber for the construction materials, cut and shape the wood, and assemble and interlock the separate wooden pieces without using nails, creating the so-called joints that withstand a millennium.

UNESCO: Culture

There was no visible wood grain in the print, and its shape indicated it was taken from a curved surface, not a flat one.

BBC: Fingerprint evidence is fallible