Hi Gary
The 'washer' is the right size for a button mould to form a cloth /
fabric covered button.
denis

A useful illustration - 
http://www.fivenine.co.uk/family_history_notebook/background/buttons/button_mould_turner.html
[1]

----- Original Message -----
From: "HISTORICAL ARCHAEOLOGY" 
To:
Cc:
Sent:Mon, 17 Nov 2014 17:27:43 -0700
Subject:turned bone

 Can anyone help me please identify what these turned bone items may
have been for. A photo can be fond on Flickr
here:https://www.flickr.com/photos/garyvines/15813756281/ 

 One is part of a circular bone ring 60mmdiam. and the other a 35mm
diam. bone washer. Both were found within a building that appears to
have been used for butchering animals in the second half of the 19th
century, with a stack of bovine femurs and scapula in one corner, so I
suspect there was a bone working workshop there.

 any ideas greatly appreciated

 gary vines



Links:
------
[1]
http://www.fivenine.co.uk/family_history_notebook/background/buttons/button_mould_turner.html