Your welcome! For some odd reason, I had talked about the formula for years with the collector community, and was ignored, and laughed at by some. (I did publish articles In The Groove, when it was edited by Tim McCormick He is a much more down to earth editor, than the intellectual supremacist they have now. ) It was only looked at when a chemist Eric Monro did similar research much later (18 years later, I have been doing this since 2000 and have manufactured over 1 ton of blank cylinders) at the Library of Congress. These intellectual supremacists became upset when I pointed out that he had verified what I had been saying.