I don't use dip pens, but the nibs constantly come up on my eBay searches, as I collect Esterbrook fountain pens. I've been intrigued by the designation "Radio nib" - why a special nib for writing for radio? I did some searching on Google, and found, from the "Esterbrook Project" site, that they were introduced in 1913 and were nickel-plated versions of regular nibs. Where I'm confused is that, in 1913, radio was the bailiwick of scientists, and the turn-of-the-20th version of what we now call "geeks" or "nerds". How did Esterbrook come to name their plated nib line after what was then an obscure technology? If it was the 1920's, I could understand, just like the products from the '50's that had stylized atoms, or '60's "space age" products. Just some idle curiosity on my part....