Hornby Dublo 3 Rail 4-6-2 Magnet & Poles - Remagnetised (#320) Please find for sale a Hornby Dublo 3 Rail Magnet and poles from a 4-6-2 Duchess locomotive. In good clean used condition. The magnet has benefited from being remagnetised. For more information please see Hornby Dublo Service Sheet No. 5 (Dec 1962) Please see all photos to help with description. Item will be well packaged for delivery. Please see Badrocks Model Trains eBay shop for more listings. Thank you for looking.