Abstract: A display system includes a binder, a header, a retaining bracket and an extension assembly. The binder includes a plate, a plurality of sheets and an attachment assembly. The plate has a front surface, a rear surface and an edge. The attachment assembly secure the sheets at the front surface of the plate and maintains and displays information. The header includes indicia and is adapted to be positioned in a retracted position where the header is substantially obscured from view by the plate and an extended position where the header extends substantially from the edge of the plate. The retaining bracket is attached to the rear surface of the plate. The extension assembly is adapted to engage the retaining bracket to maintain the header in the extended position.

Abstract: A display system includes a binder, a header, a retaining bracket and an extension assembly. The binder includes a plate, a plurality of sheets and an attachment assembly. The plate has a front surface, a rear surface and an edge. The attachment assembly secure the sheets at the front surface of the plate and maintains and displays information. The header includes indicia and is adapted to be positioned in a retracted position where the header is substantially obscured from view by the plate and an extended position where the header extends substantially from the edge of the plate. The retaining bracket is attached to the rear surface of the plate. The extension assembly is adapted to engage the retaining bracket to maintain the header in the extended position.

Abstract: A predominantly .beta.'-sialon-bonded silicon carbide refractory article is produced by reaction-nitriding a green body containing a plurality of silicon carbide powders, none having an average particle size greater than about 200 micrometers, a metal oxide oxygen source, fine grained silicon, and a source of aluminum. The invention also includes a raw batch and a process for producing the refractory article.