1847 AD., Portugal, Maria II, Governo Civil do Porto (G.C.P), Septembrist revolution, Porto mint, countermarked, Pataco, KM 415.1.

Portugal, Maria II (1834-1853), Governo Civil do Porto (G.C.P), Septembrist revolution, Porto mint, countermarked also in Porto, 1847 AD.,
Pataco (= 40 Reis) (ø 34,5-35 mm / 30,61 g), bronze, 38,20 g theor. mint weight (?), mintage ? , axis medal alignment ↑↑ (0°), smooth edge,
Obv.: MARIA.II.D.G.PORTUG.ET.ALG.REGINA , crowned arms.
Rev.: PUBLICÆ * * * UTILITATI / * 1847 * , value at center within wreath, date below, circular revolutionary countermark "G.C.P" in a circle above value.
KM 415.1 (countermarked on KM 402 / AG M2 14) .

Year / Mintage
1833 ? KM#415.1
1847 KM#415.1
1847 KM#415.2 (dot below "G.C.P.")

KM 402 :
1833 ? Lisbon mint
1834 ? Lisbon mint
1847 ? Porto mint

In 1842, a coup d'etat led by one-time radical Costa Cabral, who was influenced by French doctrinaire politics, began in Porto with royal approval. Queen Maria II ordered the reinstatement of the 1826 Charter, but little progress was made in reconciling the moderate and radical left, nor in recognition of the constituent power of the nation. When a military insurrection broke out at Torres Novas in 1844, Count Bomfim, leader of the revolutionary party, took command of the insurgents and seized the fortress of Almeida. The government suppressed the revolt after a siege of a few days, but ultimately Costa Cabrals' firm and disciplined majority could not contain an undisciplined popular revolt.

Unlike Septembrist initiatives that were centered on the district capitals, many of Cabral's programs affected the people of the country's interior directly. Cabral's moves once again decentralized government, placing the costs of health care, public finances and other sectors onto the tributary network, reinvoking the medieval system and subordinating local governmental authority. Two other initiatives, the forbidding of church burials and land assessment, were directly worrisome to the rural population, who were fearful of the government seizing their land rights. The revolt that occurred around the middle of April 1846 was similar to one that had occurred in Galicia, and involved a popular uprising in the parish of Fontarcada, Póvoa de Lanhoso. Although the revolt included both men and women, it was known as the Revolution of Maria da Fonte, because women were active involved in this rural uprising: armed with carbines, pistols, torches, and stakes, the peasantry assaulted municipal buildings, burned land records, stole property and even attacked a garrison from Braga. Some even declared themselves Miguelistas, but rather for being in opposition to encroachments by the state and the imposition of taxes than as a political affirmation.
Meanwhile, the peasant uprising was co-opted by an undisciplined band of political and military elements backed by the small merchant class, pitting the Septembrists against the Cartistas in a civil war known as the Patuleia, similar to what occurred in the French 1848 Revolution and the Second Republic. Although social conditions were different, an unnatural coalition of Septembrists and Miguelist sympathizers was reacting to the doctrinaire liberalism and neo-aristocratic avarice of the Cabralist politicians. Their forces installed themselves in Porto, declared a provisional government and attempted to march on Lisbon. The "soldiers", without strong ideological convictions, wavered in their political ideology, sometimes trading sides. Nevertheless, the civil war between the competing armies spread to all parts of the country, and only foreign intervention could stop the bloodletting. The popular uprising was brutally suppressed with support from Great Britain and Spain, and the war ended in a clear Cartista victory, with opposition troops being imprisoned. The Convention of Gramido, an agreement that included amnesty for the Septembrists, was signed in Porto on 29 June 1847.

More on https://en.wikipedia.org/wiki/History_of_Portugal_(1834–1910)#Setembrismo_and_Cartismo