from The Century Dictionary.
- noun A legal mark or symbol made on certain gold and silver articles for the purpose of indicating their degree of purity, etc.
- noun In an engraving, the depression in the paper around the edges of an impression taken from an incised plate. It is caused by the force of the press when striking off.
Sorry, no etymologies found.
Serendipity is the plate-mark of overindulgent markets, and the marketplace of inclination, like it or not, is … la mode more efficient. "