E109-Switzerland 1958 Pro Juventute 10+10 Helvetia Stamps Block of 4 on Origin

📖 Title
Switzerland 1958 Pro Juventute 10+10 Helvetia Stamps – Block of 4 on Original Mailed Cover (Used Postmarked Basel)
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📂 Category
Stamps → Europe → Switzerland → Covers & Postal History
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📝 Condition
Used / Vintage Postal Cover
Original 1958 Swiss envelope
Block of 4 Pro Juventute charity stamps
Clear Basel postmark
Envelope shows minor age-related wear and small tears on back
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📌 Item Specifics
Country/Region of Origin: Switzerland (Helvetia)
Stamp Type: Pro Juventute
Year of Issue: 1958
Denomination: 10 + 10 Rappen (Charity semi-postal)
Format: Block of 4 on cover
Cancellation: Circular Basel postmark
Theme: Flowers / Charity Issues
Condition: Used (on original envelope)
Colour: Green/Yellow
Original Recipient Location: Bonn a. Rh., Germany
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💷 Price & Valuation
Current market estimate:
Block of 4 off-cover: £3 – £6
On original postal cover (clean postmark): £8 – £15
Because it is addressed, with a clean 1958 Basel circular cancel, collectors may pay slightly more.
Estimated value: £10 – £15
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💰 Recommended eBay Buy-It-Now Price
£14.99
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🔨 Auction Option
Start price: £5.99
Duration: 7 days
Attracts bidders interested in Swiss postal history and charity issues
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