Giancarlo,
No worries at all. Hope there was enough there I posted, and from other members to assist you.
In terms of the pre nomitures on 4T's, I don't think I have seen many without those tale tale signs stamped in at H&H or whereever. I would certainly look for the S stamped into the metalwork on the ejection side, to prove the action had been selected, as I would the woodwork, and the T/TR stamped on the wrist and the other side of the action, with designated and correct T's.
I do see where you are coming from, as on occasions not all would be in place, more from an oversight rather than mix and match, later in service.
Others may have a varied opinion, I have only ever owned three all Maltby 4T rifles and all heavily stamped with "Pride".