Seller: monjamo ✉️ (7,277) 100%, Location: Alpine, California, US, Ships to: US, Item: 363865118445 Vintage Large Brown Ohio Brass 4OB6 Porcelain High Voltage Multipart Insulator. I was told these were made in 1946 by Ohio Brass (4OB6). I have 3 available. (Not currently listed). Vintage Ohio Brass insulator in excellent condition. No chips or other damage. I was told these were made in 1946 by Ohio Brass (4OB6). I have 3 available. I also have the posts available if interested. (Not currently listed). Buyer pays shipping. Shipper will buyers choice. Shipping weight is 8lbs. packaged. Condition: Used, Condition: Excellent, Country/Region of Manufacture: United States, Featured Refinements: Porcelain Insulator