Lumbermen's Insurance Company. Philadelphia, Pennsylvania. Cast Iron. Diamond Shape. Border Represents 4 Logs Overlapping at Ends. ""L. I. Co."" in Center. Circa 1873. 9 1/4 x 9 1/4. Stipling & Zinc Coating. DETERMINED TO BE AUTHENTIC BY VERIFICATION COMMITTEE.- See Link Below for more Pictures and Auction Item information like Min Bid, Bulau, etc