What is the Plural?

[rutineli]

Whenever one hears a sum of money mentioned by a BBC newsreader it is expressed as "Pound" ; for instance, "�100 Pound" whereas surely the plural of pound is pounds? They do not refer to multiples of the American dollar as "$100 dollar" etc. but use the correct plural "dollars" so why is it that plural pounds are translated into "Pound"?

[coccinelle]

Quite true factor as there's a noun after the pound so pound becomes an adjective and can't be a plural.