This is like asking "How long is a piece of string?". You have to state which coin and describe its condition.
Great Britain, in the bloodless Aroostook War, 1839.
Very few authentic 1839 Gobrecht Dollars exist today. It's likely a copy of some type. Take it to a coin dealer for an idea of value.
The First Opium War was a fight between China and Great Britain which took place from 1839 to 1842. The war was won by the British and resulted in the Treaty of Nanking.
Carlos Flick has written: 'The Birmingham Political Union and the movements for reform in Britain, 1830-1839' -- subject(s): Birmingham Political Union, Chartism, Elections, Great Britain, Great Britain. Parliament, History, Politics and government, Reform
Ireland
The coin exists only in proof state. 60-70 are known to exist and value range from $22,000 to $175,000
No nickels were minted in 1839, just half dimes.
In 1839, the Western foreign power that challenged China was Great Britain. This confrontation was primarily over the opium trade, which Britain was heavily involved in, leading to widespread addiction in China. The tensions culminated in the First Opium War (1839-1842), where British military power ultimately demonstrated China's vulnerability and resulted in significant territorial and economic concessions for Britain through the Treaty of Nanking.
An authentic 1838 U.S. silver dollar would be one of the Gobrecht Dollars (1836-1839) very few were released into circulation and are rare. All have minimum values of $10,000.00+. Many copy's and replicas exist.
A treaty in which Britain promised to defend Belgium if it were ever attcaked.
It is necessary to know the amount of wear and mint mark (if it has one) to be able to make an estimate of value. I would suggest you take your coin to a reliable dealer and have it appraised.
Isambard Kingdom Brunel began building the SS Great Britain when he was 37 years old. The construction started in 1839, and the ship was launched in 1843. It was one of the first iron-hulled, steam-powered transatlantic ships and marked a significant advancement in maritime engineering.