Curly Birch - Wooden Marble.
Revered as the wooden marble of the Nordics, curly birch truly symbolizes the value of Nordic nature. Curly birch is the only wood species to trade in kilograms, not in cubic meters. Its value can be up to 100-fold compared to other Nordic wood species. The Central European aristocracy and the Russian Tsar too, have appreciated this valuable Finnish wood in history: Alexander I is known to have donated a complete set of furniture to Napoleon, made entirely of curly birch.
The curling is a naturally occurring mutation of the silver birch. The beautiful curly pattern makes every piece of curly birch is unique.