Some of the most ingenious inks ever created can be found in the Ajanta and Ellora caves in India. These eye-catching paintings, done more than 1,500 years ago, show a creativity and quality that is astonishing. These caves caught the eye of the leaders at Markem Corporation, the Keene, NH-based leaders in marking and coding equipment, supplies and services. Markem has also been making a name for itself in the digital ink and printhead industry as majority owner of Spectra, Inc., a leading deve...