99p
It is worth 20p.
Well, honey, if you're talking about British currency, then you're looking at four fives being worth 20p. Each five is worth 5p, so you do the math and you get 20p. It ain't rocket science, darling.
£0.20
20p
20p
20
20p
20p
20p 1 dollar
The new 2008 design (by Matthew Dent for which he received £35,000) has proved very popular. The 20p coins which have this design and NO date on the obverse (queen's head side) are worth between £60 - £80 each. Just 100,000 were struck. Those that ARE dated are worth 20p and ONLY 20p.
In British coinage 20p coins are quite common and will normally only be worth their face value. The only notable exception is the 'dateless' 2008 mule errors which are worth significantly more than their face value. (around £30-£90)
Somewhere around 20p