I have a few pieces with this mark, but have not found any info as of yet. They would have come from Columbia between the 1910's through the 1930's Any help would be appreciated http://img.photobucket.com/albums/v297/woodsk/Mobile%20Uploads/8f7976c6-f041-4edf-9483-51a57dadac95_zps4c10cc5d.jpg http:/...