Pontil scars on dating glass

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Another category easy to identify are the ink bottles.

On the other hand, most food and cosmetic jars differ from many other pieces of glass, but it is generally difficult to tell them apart without embossing.

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In most cases, pontil marks, labels and signatures can give a good general idea when a piece was made rather than a specific date.

Values of bottles are determined by a variety of factors including age, rarity, demand, manufacture method, advertising and use, glass color, presence of a label, and eye appeal.