FLOAT
An 1851 Canada 12d black on laid paper (SG 5) - per the Commons description, the example sold by Spink Shreve Galleries in January 2011 for US$425,000; the constituent prices a mint pair, not this single.
An 1851 Canada 12d black on laid paper (SG 5) - per the Commons description, the example sold by Spink Shreve Galleries in January 2011 for US$425,000; the constituent prices a mint pair, not this single.

Canada 1851 '12d Black' (Twelve Penny Black)

Maker
Province of Canada
Year
1851
Rank
49 of 100
Identifier
SG 5 (Scott 3), 12d black Queen Victoria on laid paper, imperforate; mint pair with original gum; only ~150 issued

Canada 1851 '12d Black' (Twelve Penny Black)

Realized at auction: $740,625, dated 2024-03-08. This is a realized sale. Somebody paid it.

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

Canada's most famous classic and one of the world's great rarities — only a tiny fraction of the ~150 issued survive mint.

SG 5 (Scott 3), 12d black Queen Victoria on laid paper, imperforate; mint pair with original gum; only ~150 issued

What is the best-sourced number for it?

Figure
$740,625
Kind
Realized at auction
Date
2024-03-08

A realized auction price is what a buyer actually paid on the date shown, including the buyer's premium where the sale reported it. It is the strongest kind of reference price, and it is a record of one sale of one object on one day, not a promise of what the next example will bring.

By reference price, Canada 1851 '12d Black' (Twelve Penny Black) is number 20 of 99 in the stamps entries of the FLOAT 100. 75 of those 99 rest on a realized sale; the rest carry an asking price or a guide value, and each page says which. Rank within the FLOAT 100 itself (49 here) is editorial: how much an object defines its field, not price alone.

How this is made

The figure
One reference price, 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.
Archive
2026-08-08

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FLOAT is a free tracker. Add the stamps you own, keep photos and certificates with each item, and see a value built from real sales at your item's grade. This page is a public reference; it does not offer, price or sell insurance.