They were either hallmarks of full dress, or nonexistent.
hallmarks of an ideal position have little to do with weather, lifestyle, or socio-political milieu.
There are rooms and hallmarks in and around my city's natural history museum that have not changed for many decades.
During the embryo stage of life, cells become organized into tissues and organs, one of the hallmarks of all animal species.
Oldest known bat lacked hallmarks of echolocation.
Social togetherness, empathy and cooperation are hallmarks of humanity.
After all, one of the hallmarks of weather is its variability and seeming unpredictability.
Procrastination is one of the hallmarks of that disorder.
All the hallmarks of a space faring species negotiating its first steps.
One of the hallmarks of beer is-an oppositional one is-that you cannot tell a vintage.
British Dictionary definitions for hallmarks
(Brit) an official series of marks, instituted by statute in 1300, and subsequently modified, stamped by the Guild of Goldsmiths at one of its assay offices on gold, silver, or platinum (since 1975) articles to guarantee purity, date of manufacture, etc
a mark or sign of authenticity or excellence
an outstanding or distinguishing feature
(transitive) to stamp with or as if with a hallmark
Also (for senses 1, 4) platemark
C18: named after Goldsmiths' Hall in London, where items were graded and stamped
1721, official stamp of purity in gold and silver articles, from Goldsmiths' Hall in London, site of the assay office; see hall + mark (n.1). General sense of "mark of quality" first recorded 1864. As a verb from 1773.