Beautifully engraved specimen certificate from the EZEM, Inc. . This historic document has an ornate border around it with a vignette of the company's logo. This item has the printed signatures of the Company's Chairman and Secretary. E-Z-EM, Inc. is the international leader in the design, manufacture and marketing of contrast media for gastrointestinal tract radiography. The company's first product was developed to eliminate the cross-contamination occurring between patients undergoing contrast x-ray examination of the colon. E-Z-EM offers the most comprehensive line of GI x-ray products in the world, and the company's name has become synonymous with gastrointestinal contrast media and delivery systems. In more than 80 countries around the world, E-Z-EM products are recognized as standards of innovation and quality in the diagnosis and treatment of disease.