Mainline LNER B1 'Kettle' Whistle 4mm Scale 3-D Printed in Black ABS Type Resin.
£1.33
Now available by request as a separate item. For Mainline/Bachmann B1 models, but may be suitable for others. Supplied in Black resin. (Pictures show item in white to show detail more clearly) for full effect, requires painting before use.