The phrase "age marks" is correct and usable in written English.
It can be used to refer to indicators or signs that suggest a person's age or the age of an object.
Example: "The age marks on the tree trunk revealed that it was over a century old."
Alternatives: "age indicators" or "age signs".
"It has character, it has age marks, it has warmth".
One night, while trying to think of an innovative birthday present for a friend, he drew age marks on his face and assumed the Kiki persona.
The early stage, probably of Pliocene-early Pleistocene age, marks the onset of a central depocentre located below the modern mid-shelf and constructed by sediment progradation delivered through at least two erosive pathways related to fast-flowing, grounded ice.
"The Neolithic ('New Stone Age') marks the time when the prehistoric communities of Europe turned their backs on the hunter-gatherer lifestyle that they had followed for many thousands of years, and instead, became farmers.
Bohnchang Koo's oversize photographs appear to be immense skies and oceans printed on paper so flecked with age marks that the image and nature itself might be slowly succumbing to time.
Some of the more pungent images evoke the sitter obliquely, like Barbara Zucker's "Universal Lines: Around My Eye and My Cheek" (1998), a seemingly abstract wall sculpture of wavy metal stripes that turn out to be enlargements of facial age marks.
The space age marked the dawn of many daring runway fashions.
The Victorian era in English history is often referred to as a 'golden age', marked by unique and historic achievements in the field of engineering and technology.
The atomic age marked the start of the cold war, fought hot in proxy wars from Vietnam to Afghanistan, with blood spilt by the superpowers' hi-tech weaponry.
The ideal of the melting pot, they insist, has become obsolete in an age marked by the anti-assimilationist doctrines of multiculturalism and the hard facts of globalization.
But this big, baggy, but ultimately extremely moving meditation on encroaching age marked a long-overdue return to the writer's Boltonian roots.
