An aqua quart embossed: "MASONS X PATENT NOV 30TH 1858" and on the base: "L&W". Shiny glass with strong embossing and no damage or stains. The ground mouth has some flaking and is ground on a slant following the slope of the top thread, and appears to have been done that way originally. Comes with an early CFJCo zinc cap. Scarce.