Two Shillings and Sixpence, or a Halfcrown, has been a part of the British currency for hundreds of years. I will assume that you mean a more recent year prior to the currency becoming redundant.
Two Shillings and Sixpence GBP in 1966 had the purchasing power of about £1.56 GBP today.
Two Shillings and Sixpence GBP in 1966 had the purchasing power of about €0.80 EUR today.
NOTE - This historical conversion is the result of many calculations and considerations by a purpose designed program for which I can take no credit. The resulting answer should only be regarded as an approximation.
Today, a euro is worth about $1.55.
Today, a euro is worth about $1.55.
As of today 43 Euro is worth about 54.61 US dollars.
50 cents
As of today (01APR2011), 1 Euro is worth about 88 pence, or 0.88 pounds. One pound is worth about 1.13 Euro.
As of today (01APR2011), One Botswanan Pula is worth about 0.11 Euro. One Euro is worth about 9.29 BWP.
As of today (23JULY2011), 1 Euro is worth about $1.44 US Dollars.
As of today (01APR2011), $199 US Dollars is worth about 139.81 Euro.
As of today (01APR2011), 40 Euro is worth about $56.94 US Dollars.
192
As of today (02APR2011), 1 British Pound is worth about 1.324 Euro, and 1 Euro is worth about 0.8831 Pounds.
3666.33 EUR