Aden / Seiyun stamp year 1951 New currency 5s / 5r MNH stamp
That is a key high-value stamp from a historically important period of currency transition in the former British Aden Protectorate!
The stamp is the Aden / Kathiri State of Seiyun 1951 New Currency Overprint: 5 Shillings on 5 Rupees.
🇦🇪 Aden / Seiyun 1951 Currency Change
The overprint was necessary because, in 1951, the currency changed from the Indian denominations of Rupees (R) and Annas (a) to the East African Shillings (s) and Cents (c).
- Original Stamp: 5 Rupees (5R) from the 1942 Definitive Series.
- Overprint: The new value 5/- (5 Shillings) was overprinted on the 5 Rupee stamp.
- Catalogue Number: This stamp is generally listed as Stanley Gibbons (SG) 27 in the Seiyun listings.
💰 Estimated Value Range
The 5s on 5r is one of the highest values in this currency change set, making it one of the most desirable stamps from the series. The value depends significantly on the condition:
| Condition | Estimated Retail Price (USD) | Estimated Retail Price (GBP) |
| Used (U) | $15 – $35 | £12 – £28 |
| Mint Hinged (MH/LMM) | $35 – $55 | £28 – £45 |
| Mint Never Hinged (MNH) | $45 – $65+ | £35 – £50+ |
Note: Online retail listings for a Fine MNH copy of SG 27 tend to cluster in the $25.00 to $45.00 USD / £20.00 to £35.00 GBP range, with some sources listing a higher catalogue value (up to £120 for a very fine copy).
🎯 Key Collector Points
- Rarity of Top Values: High-denomination stamps like the 5s/5r were used less often, making high-quality used or MNH examples more sought after than the low-value cents/annas.
- Color: The base stamp is typically Green and Orange-Brown.
- Specialized Collecting: The entire 1951 overprint series is popular with specialists, as there are minor varieties, such as variations in the overprint font or alignment, which can command a premium.
