The world's first stamp: British of course

England was the first country to print and use stamps—the first of which was sent from the post office in Bath. I know this is true because of this red sign, which we saw at the Bath post office, where we bought a sixpence for Philip, and which I trust without questioning.

I probably shouldn’t trust the sign so implicitly because grammatically, it’s incorrect. It should read: “The world’s first stamp, the Penny Black, was sent from Bath.” But we’ll let this go.

As stated in the above sign, the very first stamp was the Penny Black—so called because (A.) It cost a penny, and (B.) it was black. Why get all creative and stuff with product names when you can keep it plain and simple? 

The Penny Black.

The Penny Red. (Yet another example of a plain and simple product name.)