Pressed glass knobs play a special role in glass history. They were among the earliest machine-pressed objects, and subject of a U.S. patent as early as 1825.
A Glance at Glass Knobs Letitia Hart Alexander. The Magazine Antiques, May 1928, pp. 393-394. |
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An early study of glass knobs. | ||
The Case of the Pressed Glass Knobs Helen McKearin. The Magazine Antiques, August 1951, pp. 118-120. |
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An account of the 1829 legal complaint by Whitney and Robinson of the New England Glass Company against the Union Glass Company of Philadelphia. | ||
The role of Glass Knobs in Glassmaking and Furniture Kenneth M Wilson and Kirk J Nelson. The Magazine Antiques, May 1996, pp. 750-759. |
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An up-to-date survey of the subject. |