That is a real beauty! A lever fill too, interesting. I didn't know that bit of history about Sheaffer pens. I have a similar looking Signature with a Triumph nib and touchdown filler (I think... Or was it a vac fill?... it has been ages since I used it last).
The Sheaffer nibs I have used are really something special. The triumph is my favorite type. Such an unusual, elegant look.
I suppose because fountain pens are more of a luxury item, now, there is some markup versus back in the day. I wonder what kind of longevity we will get out of modern top end pens?