As typical with Osborne Wood Products quality, these parts are carefully sanded to 150 grit. Many are round in nature, and are also referred to as bun feet.
Screws can also provide clues about the age of dining room chairs.
The char is then removed and bleached to remove every trace of carbon.
The chair is reassembled and presented with a thin coat of black paint.
Prior to 1830, screws were made by hand, resulting in uneven threads and off-center slots in the heads.
From 1830 to 1860, screws were often made by machine.