The American Hone Company located in Olean NY was sold in the 1950's to a new owner in Moravia, Iowa. The new owners made over 100 different barber hones that I know of but the Cotl was not one of them.
If it is a single grit hone then it is meant to be used as a edge refresher/ touch up hone for a straight razor. They generally are not a finishing grade stone as we think of them now (they used 4F graded abrasives) but some of the ones made in Moravia do qualify as finishers ( they used 1200F graded, and finer, abrasives). Please do not confuse 1200F with 1200 grit. They are very different measures.
I bunch of us have tried different barber hones and it is always interesting to see where it fits in the honing process.
Regarding narrow hones..... I agree completely with Gssixgun....but I like narrow hones! :) They are not better, they just suit me more, it is nothing more than a personal preference . But, I still use the wide 3" hones the most.
Regarding cutting the Shapton glass.... a few years ago ChrisL did that on the 1K and I got 1/2 of it. The abrasive side was ok but the glass side was all fractured and weak. I do not recommend doing this.
Hope this helps :)
I