Sterling Mfg. Co. 4 Get a print! $8.00 Add to Cart Product Information: Model:4 Manufacturer:Sterling Mfg. Co. Schematic Pages Page 1 Schematics Content Page 1: Complete Schematic Diagram of the No. 4 Circuit Please note: we carry a wide range of products which will fulfill the specifications above. Please use our search function or browse our products to find what you need!