I recently bought a jumbled lot of vintage nibs among which were some described as Spencerian #14 (with which I am not familiar, although I use Spencerian #1's a lot). They were, in fact, not Spencerians but rather No. 14 I.B.T and Co. Spencerian Artistic Pens. I.B.T & Co., I believe, is an old New York company, as I also have a #4 of this company stamped New York. Joe Vitolo wrote an article entitled Dream Nibs some years ago wherein he mentioned the Gillott Principality was stamped and sold with other pen companies names, such as Zanerian Fine Writer (same nib, different name). Pictured below is a Gillott Principality on the left, and the IBT & Co #14 on the right. What do you think? Is it a Principality clone? It was in good company--some Gillott 170, 290, 303, 404, 604EF, 659 were in this lot and some other makers I've heard of or some not. Anybody familiar with this maker? I've emailed Joe to see if he is familiar with this pen company.