All examples of 'Shield' holders use the later Transfer technology only.
Example 1 depicts a shield for London Zoo. The height of each piece is 67mm and the manufacturer's mark is located on the rear of the base with the date '1976'.
The design of the holder is the same as example 1, but the front image depicts a shield for Windsor.
As with examples 1 and 2, depicting a shield for Whipsnade Zoo.