Really depends on the date and condition. British half-crowns before 1947 are silver and worth substantially more than the ones dated 1947 and later. The ones before 1920 are sterling silver, worth more than the 50% silver ones of 1920-1946. But post a date if you want an accurate evaluation.
Not much I'm afraid, the coin is copper-nickel and is no longer legal tender in the UK, it is really only worth about a bit less than a dollar, around 70 cents, and even then they aren't selling very fast.
Depends on the year. If it is a pre-1920 coin, it is sterling silver and worth about $11 in scrap silver if in circulated condition, if it is a 1920-1946 coin it is 50% silver and worth about $6 if in circulated condition. If it has been circulated and dates 1947 and later and isn't an error or anything, it might be worth a quarter or so as a curiosity. Uncirculated coins of course are worth more than the values quoted, but without knowing the specific year it is impossible to say what the coin might be worth.
A 1948 British half crown currently sells for .50 to $1.00 (US).
The exchange rate is currently: 1 British Pound equals 1.52 US Dollar
Maybe one dollar to a collector.
1 US dollar is worth 0.689 pounds. 1 pound is worth $1.4327
The value of the pound today July 24, 2014 against the dollar is $1.70. This refers to the British pound in comparison to the US dollar.
As at 11Oct09 1 British Pound was worth 1.5820 US Dollars.
As of 31Dec90 GBP1 was worth USD1.9350 starting 1990 on 01Jan90 at 1.6060.
it does
One dollar.
a dollar
On 15-Jan-2010, one US Dollar was worth £0.61 (British Pounds), €0.69 (Euro) and ¥90.97 (Japanes Yen).
It is a British Penny and a US coin cut in half and stuck to each other. It has no value.
one dollar