Want this question answered?
The coin you have is a Churchill Commemorative Crown and NOT halfcrown. Worth around 50p - £1 today (they were mass produced in 1965....just under 20 million struck in cupro-nickel - an alloy of copper and nickel).
$10
The last British Crown (5 Shillings) coin to be minted was the 1965 Churchill Commemorative.
Try eBay or a reputable coin dealer. They do not have all that much value , so do not go to too much trouble. British 1965 Crown - Churchill commemorative.
The coin you refer to does not exist in gold, it is made of cupro-nickel. A British 1965 Crown (Five Shillings)(Churchill Commemorative), uncirculated and in absolute mint condition could fetch up to £2 GBP. If it has been circulated, not much. A British 1965 Crown (Five Shillings)(Churchill Commemorative - Satin finish "VIP" Specimen), uncirculated and in absolute mint condition could fetch up to £850 GBP. A reputable coin dealer will be able to give a more accurate valuation.
The "Churchill Dollar" more correctly known as the British 1965 Crown (Five Shillings) Churchill Commemorative coin is made from a copper-nickel alloy as have all circulating British "silver" coins since 1947.
£200
The 1965 'Churchill' Crown was mass produced in 1965. 19,640,000 were struck in cupro-nickel (an alloy of copper and nickel). They are worth today (September 2010) between 50p and £1 depending on condition.
There were no coins issued in 1977 to commemorate Churchill. The 1965 cupro-nickel five shillings issued in 1965 to commemorate his death are worth from 50p to £1. In 1977 Queen Elizabeth II commemorated her silver jubilee. 25p coins were issued in cupro-nickel (now worth 30p - 50p) and those made in silver have a scrap value of around £15.
You are probably referring to the 1965 commemorative Crown (a denomination equal to 5 shillings, or a quarter of a British pound) issued in Great Britain. The coin is larger and thicker than a US silver dollar, and there is a portrait of Queen Elizabeth the Second on the front, and a portrait of Winston Churchill on the back. It is worth about a dollar in circulated condition.
Such a coin does not exist. The "Churchill" Crown was a Five Shilling coin issued in 1965. The 1977 Crown was a 25 Pence coin commemorating the Silver Jubilee of Queen Elizabeth II.
Winston Churchill featured on the reverse of the 1965 British Crown, commemorating his death.