E249-Switzerland 1970s–80s Commercial Cover – Kronenberg AG Basel Mixed Helvet

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📌 Title 
Switzerland 1970s–80s Commercial Cover – Kronenberg AG Basel – Mixed Helvetia Franking (20c, 60c, 30c) Clear Postmarks
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📂 Category
Stamps → Europe → Switzerland → Covers
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📦 Condition
Used – Vintage commercial cover with clear postmarks, intact stamps, minor edge wear consistent with age.
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📑 Item Specifics
FieldDetails
Country/RegionSwitzerland
TypeCommercial Cover
Era1970s–1980s
Postage TypeMixed Franking
Stamps Included20c “Conserve the Forest” ×2, 60c Helvetia Church, 30c Tunnel S. Bernardino
CancellationClear circular Basel Elisabethen cancels
Addressed FromKronenberg AG, Internationale Auktionen, Basel
Envelope SizeLarge window envelope
FeaturesMulti-language return panel (Swiss postal service), machine-printed code lines
ColourWhite envelope with teal window panel
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💷 Valuation & Price Guide (UK Market)
Comparable Swiss commercial covers with multiple stamps + clear cancels + auction house origin generally sell between:
£6 – £12 (standard mixed franking covers)
Up to £15+ if buyers value the Kronenberg AG provenance (a known auction company)
Your example is above average because of:
✔ 4 stamps
✔ clear dated cancels
✔ large commercial envelope
✔ recognisable sender (auction house)
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💰 Recommended eBay Listing Price (Buy It Now)
£11.95
(Strong but realistic for mixed franking & crisp postmarks)
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🔨 Auction Option
Start price: £4.99
Duration: 7 days
Expected finish: £6 – £10
(Because sale price varies depending on collectors interested in Swiss commercial mail.)
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📌 Description)
Vintage Swiss commercial cover posted from Kronenberg AG, Basel (CH-4010), bearing mixed Helvetia franking including 20c "Conserve the Forest" pair, 60c Church issue, and 30c Tunnel S. Bernardino stamp. All stamps carry clear Basel Elisabethen cancellations. Large window envelope with multilingual postal return instructions. Excellent example of Swiss commercial postal history. Ideal for collectors of Helvetia, commercial covers, Basel postmarks, or mixed franking postal history.
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