WW1 Flying Helmet for auction.

Spotted this. Not much militaria in this sale, so maybe less interest. Chance of a bargain? Someone here might want it. thers another helmet in the sale. Just check the full catalogue.
Regards,
http://www.the-saleroom.com/Catalogues/Item.aspx?itemId=7724017&eventId=2777299&utm_source=auction008&utm_medium=email&utm_campaign=auction&utm_content=au008_lot233