And for the Grand Finale ...........It`s a Brighton Pattern stopcock...there is a metal to metal needle valve inside .When closed this allows the main valve to be re washered without further shutting down the water supply. This info may "needle" some, particularly as It was supplied by a Large Rabbit called ahhhh, Harvey
Come on you Cryptographers...are your brains agile enough to decipher this ,or do you need a powerflush