The HORNBY S3142 Lamp Diaphragm Plate is a replacement part designed specifically for the HORNBY S3142 model in OO gauge. This black plate is compatible with other Hornby products, making it easy to enhance the realism of your model railway. Perfect for collectors and enthusiasts looking to maintain or customise their trains, this lamp diaphragm plate is a must-have accessory for any railway layout. Sold as seen