Digging some more in the Yard of Western Quarry I found these out of place dots / keys. After asking Mike & Walt found out they were used in a restoration project in Avalon / Catalina. When I got them they were without a glaze but the Tile Studio found the job in a book and glazed them accordingly.
![Round Avalon Dots Round Avalon Dots](http://www.westernquarry.com/wordpress/wp-content/uploads/2012/02/Round-Avalon-Dots.jpg)