Mint condition means as perfect as when it was first made. In mint condition.
It is stricter than it sounds, and a single scratch takes something out of it. A toy in mint condition is often worth several times the same toy played with.
1nounmint conditionAs perfect as when it was first made.
“The record was in mint condition and had never been played.”
mint condition is a condition.
From coins that came straight from the mint unhandled; the phrase appears in collecting around 1897.
Originally, the phrase comes from the way collectors described the condition of coins coming straight from the mint (coin factory). First use appears c. 1897.
Etymology from Wiktionary, CC BY-SA
Practised in Antiques & Collecting