Inventor Walker, C. Irvine
Invention Apparatus for the Manufacture of Artificial Stone
Residence Charleston
Dated 2/3/1885
Patent 311,694
Class 425/200
Assign Stoney Landing Company, of same place
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0311694
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=311694