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.

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

Maker
Province of Canada
Year
1851
Rank
49 of 100

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

Canada 1851 '12d Black' (Twelve Penny Black) by Province of Canada (1851) is ranked 49 in the FLOAT 100 for Stamps. It sold for $740,625 on 8 March 2024. Canada's most famous classic and one of the world's great rarities — only a tiny fraction of the ~150 issued survive mint.

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
8 March 2024

Eastern Auctions, 8 Mar 2024: mint pair with o.g., $740,625 incl. premium ($625,000 hammer) — a Canadian auction record, 'one of three known pairs.' NOTE: figure is for a mint pair; a single mint copy made $225,000 in 2013.

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.
Archive
2026-08-08