Used to be Clk (Typ).
I know; we had a Clk (Typ), attached to 2 Sqn RAF Regt, at RAFDet Salalah in 197x.
I gave him a manuscript which included the phrase "the landline network from the aerial farm".
It came back beautifully typed as "the lunchtime network from the animal farm".
Apologies for thread drift, flippancy and annoying ex-Clk (Typ)s.
Rgds SOS
P.S. He followed the rules and always wore puttees when typing.