| Note Description | PrAg | G | VG | F | VF | VF EPQ | 40 | 40 EPQ | 45 | 45 EPQ | 50 | 50 EPQ | 53 | 53 EPQ | 55 | 55 EPQ | 58 | 58 EPQ | 60 | 60 EPQ | 61 | 61 EPQ | 62 | 62 EPQ | 63 | 63_EPQ | 64 EPQ | 65 EPQ | 66 EPQ | 67 EPQ | 68 EPQ | 69 EPQ | 70 EPQ |
2001-02
- Wmk: N. Azikiwe
| 60072 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2001-02
- Wmk: N. Azikiwe
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2004
- Wmk: N. Azikiwe
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
2005
- Wmk: N. Azikiwe
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
2005
- Wmk: N. Azikiwe
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
2006
- Wmk: N. Azikiwe
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2007-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
RI7 2007
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2009
| 60073 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
RI9-10 2009
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2010
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
RI11 2010
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2011
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2012
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2013
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2014
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2015
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2016
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2017
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2018
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2019
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2020
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2020
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |
2021
| 60071 | 500 Naira 1999-2001 Issue NIG30 varieties | | | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 6 | 6 | 7 | 9 | 9 | 9 | 10 | 12 | 13 | 16 | 16 | 20 | 20 | 21 | 24 | 25 | 28 | 29 | 32 | 37 |