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The E-Sylum: Volume 21, Number 41, October 14, 2018, Article 12

VOCABULARY TERM: NIELLO

Dick Johnson submitted this entry from his Encyclopedia of Coin and Medal Terminology. Thanks. It's a rare term often overlooked by collectors. -Editor

Niello. A design entirely of engraved lines. Niello medals have a flat background or field which is engraved (CISELE). They can be struck from dies which have very fine lines or niello medals can be hand engraved (one at a time). Niello dies must be handled with extreme care, since they are entirely of fine raised lines they are susceptible to damage.

Early niello objects, including medals, had the incised lines filled with a material composed of copper, lead and sulphur of borax – a form of black FILL-IN which was fired and polished. Such objects lacked modulated relief as all niello is biplanar – of two planes – incised lines in a flat surface with a fill-in of the incised lines.

The modern photoengraving process can produce medals of this type (PHOTOETCHED) from a black-and-white drawing – and the Paris Mint has issued numerous medals in this cartoon-like style – however the process is not widely used elsewhere in modern times. True niello has the black fill-in of the sulphur/borax composition. An imitation niello would be made in modern times with black enamel or crayon fill-in. A bas-relief model is not required for a niello medal, only a drawing.

CLASS 07.8

Book lovers should be word lovers as well.

Looking for the meaning of a numismatic word, or the description of a term?  Try the Newman Numismatic Portal's Numismatic Dictionary at: https://nnp.wustl.edu/library/dictionary

Or if you would like a printed copy of the complete Encyclopedia, it is available. There are 1,854 terms, on 678 pages, in The Encyclopedia of Coin and Medal Technology. Even running two a week would require more than 19 years to publish them all. If you would like an advance draft of this vital reference work it may be obtained from the author for your check of $50 sent postpaid. Dick Johnson, 139 Thompson Drive, Torrington, CT 06790.

Hedley Betts ad01



Wayne Homren, Editor

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