FLOAT
An intact 1843 'Double Geneva' - the 5+5c black on yellow-green double stamp of the canton of Geneva - an example of the issue in the intact 'double' form the record lot carries.

Switzerland 'Double Geneva' (1843 Double de Geneve)

Maker
Canton of Geneva, Switzerland
Year
1843
Rank
72 of 100

Switzerland 'Double Geneva' (1843 Double de Geneve)

Switzerland 'Double Geneva' (1843 Double de Geneve) by Canton of Geneva, Switzerland (1843) is ranked 72 in the FLOAT 100 for Stamps. It sold for $235,000 on 1 January 2010. Geneva's iconic double-stamp design (two 5c halves used together) — one of the most recognizable Swiss cantonal rarities.

What is it, and why is it in the FLOAT 100?

Geneva's iconic double-stamp design (two 5c halves used together) — one of the most recognizable Swiss cantonal rarities.

Zumstein 1, Double Geneve (5+5c black on yellow-green); the record lot = an intact 'double' on cover

What is the best-sourced number for it?

Figure
$235,000
Kind
Realized at auction
Date
1 January 2010

A record Double Geneva COVER sold for $235,000. Intact used 'doubles' typically run ~$60,000; a used example made CHF 17,500 at Schwarzenbach, Apr 2020. Specific date/house for the record cover is loose in the aggregator source.

This is a realized sale. Somebody paid it. Source.

How this is made

The figure
One reference price, taken from a named public source and shown with its own kind. FLOAT does not average it with anything or adjust it for time.
Realized or not
A realized price is a completed sale. A market asking price and a price-guide value are not sales, and are labeled as such wherever they appear.
Why no grade ladder
Most FLOAT 100 entries are individual objects. There is one of this, so there is no population and no spread across grades to show.
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2026-08-08