Collecting
Coin Collecting
Cleaning one destroys its value: original surface beats shiny
The single most important rule is counter-intuitive: never clean them. Polishing an old coin leaves microscopic scratches and takes most of its value with it, while original toning counts in its favour. Start from circulation finds, sorting dates and mint marks for nothing. Buying seriously means learning grading first.
First stepGo through a jar of loose change or a bank roll, look for the earliest date and any unusual mint marks, and keep your best find in a holder without polishing it.
Barriers
Cost to start
Free
Going deep → $10k–50k
Alone or with people
On your own
Effort
Sitting
Without a teacher?
Self-taught
One session takes
Under 30 min
Where
At home
Why people take it up