Here is my collection:
We start, of course, with Victoria. "R" stands for "Regina," Latin for "queen."
Then, we go to her boy Edward the Seventh. "R" now stands for "king," which is also useful if you are a dinosaur or in My Fair Lady (coincidentally Edwardian, by the way).
Next was cousin to the Kaiser and the Tzar, George Five. And it's a good thing Benjamin Franklin was on our side when he established post offices or I'd be looking for a few more Georges:
|He doesn't have a Roman numeral because he was the first G to have a post box|
|Still a functioning box somewhere in the environs of Cardiff.|
But you won't get it from me!
And finally, the ubiquitous and long-lasting monarch E-II. Her mum lived a long age, the longest among all the saxon branch of royals in Britain. So E-II could be around a bit longer. We'll see if she can outlast her troubled boy Charles.
And there you have it. A complete set.