Just what qualifies as an antique? A floating yardstick that is quite commonplace denotes anything that’s at least a 100 years old, and oddly, 25 years for cars.
No less arbitrary is the 1930 SmootHawley Tariff Act enacted in America that defines antiques as objects dating before 1830 – the approximate birth of mass production in the US.
In any case, the principle underpinning antique collection is research: it is the narrative that often writes the artefact’s ultimate price, beyond the value of the materials used, and the rarity of the craftsmanship employed. For example, it’s no mere pen if it was used to sign a nuclear accord, and antiques are deserving of professional restoration where needed.