Bronze safety valve 6" high by 1 and1/2 " diameter,3/4 " bsp inlet,set to 200psi but adjustable,recently overhauled by RSA boiler inspector.Also 4 chime organ pipe whistle, 30 " long by 3 and1/2 "diam.inlet anything from 1/2" to 1 " as required.Brass,no valve, awesome deep sound.Pictures available Both used on steam bus but now replaced and at present in Somerset . e-mail is
rabbithabitat2009@talktalk.net.Offers.