The £1.50 stamp is from 1986.
Even that I don't like this label in principle, for reason that it replace postage stamp, I wish to show one nice cover (not so nice if we talk about beauty).
I was surprised, when it arrived to me, because time delivery was just two weeks (from UK to Israel), and it pass the Tax Authority check in Israel (hand-stamp attached properly), so two week are really fast this days! (just to mention that registered Air-Mail from Europe, travel around three months to Israel, and ordinary Air-Mail full 8 months)!
Label as label, IT rate, additional two stamps attached (one of 5.00 is from 2017, and second of 1.50 I can not identify year of issue).
But, on label, I see that, or machine need maintenance to occur, or it is intentionally made!
This "IT" is like "shifted" little bit on middle of height so if You look on it from "front", You see this "shift", and if You take another look from angle, it will be just "straight"!
Generally, I like this cover, for reason that cancel is applied correctly, and it is very rare today - isn't?
re: Royal Mail Label on PU cover:
The £1.50 stamp is from 1986.