Collection › Sierra Leone › #521
500 Leones Sierra Leonean Leone
P-P-24
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.
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Front and back images may not belong to the same note.Use 'Swap back with previous/next specimen' below — usually fixes a two-pair shuffle from photographing them out of order.
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Some fields the AI was unsure about — please verify:
- Printer: “—” (0%)
- Dimensions (mm): “—” (0%)
- Watermark: “—” (0%)
- Reverse subject: “—” (0%)
- Condition: “UNC” (0%)
- Issue year: “—” (60%)
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Auto-crop on the FRONT was uncertain (not a clean rectangle).Use ✂ Re-crop to mark the corners by hand.
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Models disagreed on back_description.Inspect the value on the Identity tab and pick the right one, or Ask AI to verify.
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Models disagreed on Condition.Inspect the value on the Identity tab and pick the right one, or Ask AI to verify.
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Models disagreed on front_description.Inspect the value on the Identity tab and pick the right one, or Ask AI to verify.
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Models disagreed on historical_notes.Inspect the value on the Identity tab and pick the right one, or Ask AI to verify.
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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.
IMG_7237.HEIC
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IMG_7238.HEIC
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Where & when
What's on the note
Front: Kai Londo (1845–1896), a powerful Kissi warrior chief who unified various chiefdoms in what is now eastern Sierra Leone and western Liberia. He was a significant military and political leader during the late 19th century, known for his resistance against both rival chiefs and colonial encroachment. The note also depicts the Bank of Sierra Leone headquarters building in Freetown, and traditional African carved staff motifs representing indigenous cultural heritage.
Back: A traditional Tongkang (bumboat/lighter vessel), a wooden cargo boat with distinctive battened sails historically used throughout Southeast Asian waters for transporting goods in harbors and along rivers. These vessels were essential to Singapore's entrepôt trade and maritime heritage, symbolizing the nation's origins as a trading port.
How it was made
Signatures: Governor: Unidentified; Deputy Governor: Unidentified
Security features: microprint,intaglio
Sierra Leone in Africa
Sierra Leone in Africa. Other countries on the same continent shown in muted grey.
Background & history
MISMATCHED PAIR WARNING: The front image shows a Sierra Leone 500 Leones note dated 27th April 1995, featuring Kai Londo (Pick P-23a or similar), while the back image shows a Singapore $2 note from the Ship Series (1984–1999), approximately Pick P-27. These are two completely different banknotes from different countries. The Sierra Leone note belongs to the 1995 series featuring national heroes; the Singapore note is from the famous Ship Series designed to showcase Singapore's maritime heritage, signed by Minister for Finance (signature appears to be Hon Sui Sen or successor).
Collector references
How it came to me
Both notes appear to be in uncirculated condition with crisp paper and sharp corners, though they are mismatched specimens from different countries.
What it's worth now
No current value set. Use Edit to add one, or run "Value all" on the collection page.
History & extractions
AI extractions (3)
Edits & decisions (0)
No edits yet.
Manual fixups
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Re-crop manually
Drag the four corners to mark the banknote in each image. Click Save crop to apply.