F105-Switzerland 1970 Pro Patria Helvetia 20+10 Block of 4 Celestino Piatti –

📌 Title
Switzerland 1970 Pro Patria Helvetia 20+10 Block of 4 – Celestino Piatti – Used Cancelled Stamps
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📂 Category
Stamps → Europe → Switzerland
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📦 Condition
Used (Cancelled)
– Clear circular postmark
– Good perforations
– Colours bright
– Reverse clean with light paper fibre visible
– No major tears or thins visible
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📑 Item Specifics
Country/Region of Origin: Switzerland
Year of Issue: 1970
Denomination: 20+10
Stamp Type: Commemorative / Charity (Pro Patria)
Format: Block of 4
Cancellation: Circular used postmark
Designer: Celestino Piatti
Printing: Courvoisier S.A.
Topic: Abstract Art / Charity / 1970 Issues
Quality: Used
Perforation: Standard Swiss perforation
Colour: Multicolour (Blue/Green/Purple)
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💷 Price & Valuation (UK Market)
Market Values (Used Block-of-4, 1970 Pro Patria 20+10):
Single used stamp: £0.40–£1
Block of 4 used: £2.50 – £5.50
Very clean/strong colour: up to £6–£7
Demand is moderate, but blocks sell better than singles.
Your item’s estimated value:
⭐ £4.50 – £6.00
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👍 Recommended eBay Listing Price (Buy It Now)
£5.95
(+ £1.25 Royal Mail 2nd Class)
This positions it well—competitive but profitable.
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🔨 Recommended Auction Option
Start price: £2.99
Duration: 7 days
Expected final: £3.20–£5.20
Auction is slower; Buy-It-Now is better for this item type.
Beautiful block of 4 Switzerland 1970 Pro Patria Helvetia 20+10 stamps featuring Celestino Piatti’s geometric design. Postally used with a clear circular cancellation. Colours remain bright and vivid. Printed by Courvoisier S.A. Excellent collector piece for Swiss philately or Pro Patria charity issues.
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