GIC-41 Boston 4-conductor shielded cable PBW1/BK Boston USA made (Gavitt) waxed cotton braided push back wire PBW1/WH Boston USA made (Gavitt) waxed cotton braided push back wire PBWS1 Boston USA made (Gavitt) shielded waxed cotton braided push back wire PBW50/BK Boston USA made (Gavitt) waxed cotton braided push back wire PBW50/WH Boston USA made (Gavitt) waxed cotton braided push back wire PBWS50 Boston USA made (Gavitt) shielded waxed cotton braided push back wire PBW10/BK Boston USA made (Gavitt) waxed cotton braided push back wire PBW10/WH Boston USA made (Gavitt) waxed cotton braided push back wire PBWS10 Boston USA made (Gavitt) shielded waxed cotton braided push back wire