Description
Donald Porter had a natural engineering mind and a deep knowledge of the properties of stone. It turned out that the hard granite had properties that made if superior to cast iron for these bases. The natural material was stress free because it had already weathered in the ground for eons.

- All prices mentioned above are in United States dollar.
- This product is available at eBay.
- At ebay.com you can purchase 1956 HERMAN SURFACE PLATE catalog / sales brochure HERMAN STONE COMPANY C2 for only $19.99
- The lowest price of 1956 HERMAN SURFACE PLATE catalog / sales brochure HERMAN STONE COMPANY C2 was obtained on 06/06/2026 12:59 AM.













