HIDDEN HISTORY OF THE MARBLE INDUSTRY
Lost M.F. Christensen Patent Purloined by Akro Agate.
"Your article is exceptional. You nailed it. Your story about the original patent trail, its history, MFC> Hill> Akro> Israel> a desk drawer in a local residential neighborhood - great work!" (Michael Cohill)
“Your book is super! It fills in the gaps and answers questions about the Akro- MFC connection.” (Michael Johnson)