Historical information
An increment borer is a specialised tool to extract a core sample of wood tissue from a living tree.
The tool consists of a handle, an auger bit and a small, half circular metal tray (the core extractor) that fits inside the auger bit.
The core sample can be used to count the rings, to reveal the age of the tree and its growth rate.
Physical description
Increment borer.
The central core is stuck.
Inscriptions & markings
AGN Mattison - Sweden #4333
