- Who
- Khadar Khan
- What
- 3,909 total number
- Where
- India (Secunderabad)
- When
The largest collection of error coins is 3,909 and was achieved by Khadar Khan (India) in Secunderabad, Telangana, India, on 6 December 2023.
Khadar has been a coin collector for over 25 years.
