Debuted at the annual Monongaghela House trade show in January 1899, this line was originally given the name Columbia. Unlike earlier lines, Herringbone Buttress was the first line subjected to extensive fire polishing in glory holes or by rotating devices called glazers. This fire polishing created a smooth finish and clarity to the glass. A relatively difficult pattern to find, Herring Buttress items are predominately found in Emerald Green and Crystal. Occasionally the pieces can be found decorated with bright gold or engraved with a date, initials, or a pattern. Amber pieces are very rare and a few pieces are known in a flint opalescent.