One Pound GBP in 1960 had the purchasing power of about £15.40 GBP today.
NOTE - This historical conversion is the result of many calculations and considerations for which I cannot take credit. The resulting answer should only be regarded as an approximation.
As of 3rd July 2009, £1 = $1.63
If you are asking about a pound avoirdupois: A US dollar bill weighs about 1 gram. Thus, there are 454 dollar bills to a pound. If you are asking about a British pound: As of February 23, 2009, one British pound is worth about 1.45 US dollars.
It's worth £1
As of January 26, 2009, the British Pound is valued at US$1.395. This means that 20 pence would be worth about 28 US cents.
As of January 28, 2009, there are 5.56 Egptian pounds to the US dollar and 1.42 US dollars to the British pound. Thus, 1 British pound is equal to 7.90 Egyptian pounds.
One Pound GBP in 1920 had the purchasing power of about £26.75 GBP today.
One Pound GBP in 1988 had the purchasing power of about £1.80 GBP today.
In June 2009, the lowest exchange rate was 1 British Pound per $1.5977 US Dollars on June 5, The highest was 1 pound per $1.653 on June 26.
The exchange rate fluctuates, but as of March 14, 2011, one British Pound equals $1.61. In January of 2009, one Pound equaled $1.39.
On March 26, 2009, the exchange rate was 11.646 Swedish kronor to the British pound. For rates in the present time, see the related link.
If your asking about the British ten pound note, then it is still in circulation and there are no plans to withdraw it. (February 2009)
Charles Darwin was put on the 2009 two pound coin.