This is for a vintage large bakelite button-brown with carved leaves & flower type?-it is about 1 3/4" and about 7/16" at the thickest-the back just has the metal loop hole-it is kinda chunky-the condition is used but nice and clean-i do not know the exact age or really much more about it-i buy most all of my stuff at local estate sales-please ask if you have any other questions-Thanks for looking