https://trc-images.nl/collection_images/hires/2018/2018.2192.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2018.2100\2018.2192.JPG#
https://trc-images.nl/collection_images/hires/2018/2018.2192_2.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2018.2100\2018.2192_2.JPG#
Round button in mottled brown with a self-shank and threading grove. It has a decorative Z-motif on the front of the button.
Tagua or corozo nut (genus Phytelephas; vegetable ivory)