Ah, yes, it is not impossible to decipher.
A Jasckarpoo it was, perhaps? (later: hm, not really.
https://en.wikipedia.org/wiki/Thruxton_Jackaroo )
And TS might well have been meant as T's, I now realise.
Not easy for outsiders, that English language, thanks for support.
But let us not stick to semanticism. I still hold that a
properly maintained signal square, including its landing T, is a valuable addition to security, especially at non-controlled or even non-radio fields; and if things do go pear-shaped, at least it will help to unambiguously figure out who was right and who was wrong. Cannot we get insurers to sponsor them?