All examples of 'Royalty' holders use the later Transfer technology only.
Example 1 was to celebrate the Queen's Silver Jubilee. There are two examples of this with the other printed with a hot foil design (like silver paper). The manufacturer's mark is on the base at the rear with the date 1976 and the initials of the designer 'SAR' (Stuart Andrew Royston).
Example 2 shows the Queen's head, but is otherwise the same as example 1.
Example 3 depicts the Prince of Wales feathers and was produced to commemorate his marriage in 1981.