Canada, 2004 AD., Elizabeth II, Remembrance Day commemorative, Ottawa mint, 25 Cents, KM 510.

Canada, Elizabeth II, Remembrance Day commemorative, engravers: Susanna Blunt, Susan Taylor (obverse), Cosme Saffioti and Stan Witten (reverse), Ottawa mint, 2004 AD.,
25 Cents (ø 23,9 mm / 4,39 g), nickel-plated steel (magnetic, 94% steel, 3.8% copper and 2.2% nickel), 4,40 g theor. mint weight, mintage 28.972.000 , axes medal alignment ↑↑ (0°), reeded edge,
Obv.: ELIZABETH II - D · G · REGINA / {SB} / P , (Elizabeth II, Queen by the grace of God), her crowned bust facing right (4th portrait); composition mark "P" below; engraver´s monogram at her r. shoulder.
Rev.: CANADA - 2004 / 25 / CENTS / C S / REMEMBER / SOUVENIR , a red coloured poppy in the middle of a maple leaf, surrounded with the legend, value and date, engraver´s initial r. below maple leaf.
KM 510 ; Schön 533.1 .

Year / Mint Mark / Mintage
2004 P 28.972.000 (composition mark "P": multi-Ply Plated)

Remembrance Day commemorative with a poppy, symbol of remembrance of the sacrifice in World War I and other wars.
The reverse featured a corn poppy coloured red, the first coloured general circulation coin in the world. Also known as the "conspiracy coin", due to the red structured center.
This resulted in a bizarre international incident, in which American military contractors unfamiliar with the coin's design believed these coins were outfitted with nanotechnology designed for espionage. They suspected there might be a microchip inside the coin´s center, enabling them to be tracked by satellites.

Remembrance Day (sometimes known as Poppy Day) is a memorial day observed in Commonwealth of Nations member states since the end of the First World War to remember the members of their armed forces who have died in the line of duty. Following a tradition inaugurated by King George V in 1919, the day is also marked by war remembrances in many non-Commonwealth countries. Remembrance Day is observed on 11 November in most countries to recall the end of hostilities of World War I on that date in 1918. Hostilities formally ended "at the 11th hour of the 11th day of the 11th month", in accordance with the armistice signed by representatives of Germany and the Entente between 5:12 and 5:20 that morning. ("At the 11th hour" refers to the passing of the 11th hour, or 11:00 am.) The First World War officially ended with the signing of the Treaty of Versailles on 28 June 1919.
More on https://en.wikipedia.org/wiki/Remembrance_Day