https://trc-images.nl/collection_images/hires/2018/2018.1409a-d_2.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2018.1400\2018.1409a-d_2.JPG#
Two pairs of round buttons in brown wood. Each button has a groove down the middle with two large square sewing holes. The two larger buttons still have a piece of cloth through the sewing holes that was used instead of sewing thread.
https://trc-images.nl/collection_images/hires/2018/2018.1409a-d.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2018.1400\2018.1409a-d.JPG#