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Dating antique glassware

dating antique glassware-19

Blown three-mold glass was sometimes called “prest” (pressed) because the glass was blown into a mold and “impressed” with a design.Various names for blown three mold glass have been used by collectors since its rediscovery in the early 20th century.

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Other political figures include General Jackson and Zachary Taylor.Pressed glass is patterned only on the exterior and smooth inside.Molded glass can be easily distinguished from cut glass, since cut glass sparkles with prismatic brilliance as the sharp angles of the cuts in the glass break up light into all colors of the spectrum, and molded glass has a softer, more rounded surface which transmits a silvery, more luminous gleam.Taylor flasks have been discovered with the captions, “Corn for the world,” and “Gen’l Taylor Never Surrenders.” Images of John Quincy Adams, Henry Clay and William Henry Harrison also appear on flasks.The main characteristic that sets apart three-mold ware from pressed glass is that the inverse of the pattern of three-mold glass can be felt on the inside of the object.One of the vertical walls of the mold was permanently fastened to the base and the other walls were attached to it by removable pins.

Designs were cut into the inside walls of all mold parts.

Also in the Geometric category is ribbing, which could be imprinted on the object vertically, horizontally, diagonally or in a swirled pattern.

Ribs can be narrow or wide, differently spaced, rounded, flat or inverted.

The Coventry, CT Glass Company was also a manufacturer of three-mold items.

It is believed that glass factories in Pittsburgh, Philadelphia and Baltimore also produced three-mold glassware, but since excavation is not possible, no proof exists.

It was first called “Stiegel glass” by collector Frederick W.