Possible Whitley Item To Identify

thanks for that,

pity its not evidence of a definite whitley.

at least its from an aircraft, will need to have another look for proof.

the rest of the wording is ‘use no oil or grease’

oxygen c0ck tap….sits on either the top of a oxy bottle or on a oxy supply c0ck…..fitted to many types

true enough!

You can say it’s an RAF aircraft though, which narrows it down a bit.