Originally Posted by SRN Director We have developed the SRN for a few key reasons- First and foremost to help our members succeed with their services. For those starting up a business or wanting to advance their skills, the SRN was designed to assist in meeting those goals. We offer a stone restoration class that is tailored to the needs of the individual. From the basics to advanced techniques, the class is a practical hands-on experience to help the student gain knowledge of stone repair and ...