Huh. Stumbled on it on YouTube. They seemed very knowledgeable about shave soaps. Located in Baltimore MD.
I have tried a couple. They are very hot right now...Easily one of the most "up and coming" soaps. Their products are made Maryland. They make all types of grooming items from shave soap, aftershaves, pomades, etc. I have only tried the shave soap, but they were great quality. I would definitely recommend checking it out if you have the chance.
I just googled it - it is spelled "Jon's" not John's. It has some pretty good reviews. It is made with tallow. I have never seen it being sold by any of the usual vendors.