Collection › Nigeria › #420
50 Kobo NGN
P-P-14c
Needs review
✦ AI 85%
The AI flagged these for your attention. Use ✦ Fact-check to cross-check factual fields against another model's world-knowledge, or 🔍 Re-look at image when you suspect the AI misread the pixels.
-
Some fields the AI was unsure about — please verify:
- Series name: “—” (30%)
- Issue year: “—” (40%)
- Series year: “—” (50%)
Click ✦ Ask AI to verify or fix any below. -
Overall AI confidence is 85% (auto-approve threshold is 92%).Skim the Identity tab; the dots next to each field show what the AI was unsure about.
Where & when
What's on the note
Front: Traditional Nigerian agricultural scene depicting workers harvesting and processing crops, likely yams or similar staple food. The scene represents Nigeria's agricultural economy in the post-independence era, emphasizing the importance of farming to the nation's economy and food security. Three workers are shown engaged in crop processing near a waterway with palm trees in the background.
Back: Alvan Ikoku (1900–1971), Nigerian educationist, statesman, and nationalist who served as a federal minister and was a prominent figure in Nigeria's independence movement. He was a strong advocate for educational reform and modernization in Nigeria, serving as Minister of Education in the Eastern Region and later as a federal minister. His portrait honors his contributions to Nigerian education and political development in the critical years surrounding independence.
How it was made
Signatures: Governor: signature present but name illegible; Director: signature present but name illegible
Security features: watermark,intaglio,microprint
Nigeria in Africa
Nigeria in Africa. Other countries on the same continent shown in muted grey.
Background & history
This note belongs to the first decimal currency series issued by the Central Bank of Nigeria following decimalization in 1973, when Nigeria replaced the Nigerian pound with the naira and kobo (100 kobo = 1 naira). The 50 kobo denomination was part of the initial decimal series that circulated from 1973 through the mid-1980s. The serial prefix 'B/34' indicates a specific print run within the series. Alvan Ikoku was chosen to appear on this denomination as part of the Central Bank's policy of honoring significant Nigerian figures from various regions and backgrounds. This series was eventually replaced by coins for smaller denominations and redesigned banknotes. The note features traditional Nigerian geometric patterns in the borders, reflecting indigenous artistic heritage. The agricultural scene on the front emphasizes Nigeria's economic foundation in farming, particularly in the staple food crops that sustained the population.
Collector references
How it came to me
Note shows circulation wear with visible creasing and some soiling in center. Colors remain relatively strong. No tears visible but some handling marks present.
What it's worth now
Valuation history (1)
| date | low | high | currency | source | note |
|---|---|---|---|---|---|
| 2026-05-10 06:49:25 | 2.0 | 8.0 | USD | ai | from claude-sonnet-4-5 |
History & extractions
AI extractions (1)
Edits & decisions (0)
No edits yet.
Manual fixups
Find near-duplicates
Manual pairing override
Edit specimen #420
All fields below post to the same save endpoint. Sections collapse to focus on what you need.
Re-crop manually
Drag the four corners to mark the banknote in each image. Click Save crop to apply.