They look like conchos, from a (western?) saddle?

See this eBay auction for where these decorative pieces would be
attached to a saddle.
http://cgi.ebay.com/Beautiful-Vintage-Custom-Made-Tooled-Western-Saddle-
WOW_W0QQitemZ110090832272

However, most conchos - if they have a hole in the center - have 2
slots, to pass the leather strip thru.  So...maybe that's not what your
pieces are.  Oh well.

Perhaps helpful info:
http://www.imh.org/imh/draft/dr4.html


 

>-----Original Message-----
>From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On 
>Behalf Of Rich Green
>Sent: Thursday, February 15, 2007 3:52 AM
>To: [log in to unmask]
>Subject: Re: Help in Identification of a War of 1812 Artifact
>
>Patrick,
>
>They look like bridle rosettes or decorations similar to those 
>found on cavalry mounts. Similar items found near Fallen 
>Timbers battlefield in the Maumee, Ohio area.
>