Dutchman Repairs to Indiana Limestone structures are the best way to ensure the repair stays in tact. Using actual Indiana Limestone matched to the color of the damaged area, limestone is used to fully restore the limestone, leaving it looking as if no flaw ever existed.
Below is a downloadable document that explains the Dutchman Repair process in full. It is yours free of charge courtesy of Ionic Cut Stone. Simply click on the file link below to download.