These coins are still potentially in circulation so, unless they are part of a Proof or uncirculated mint set or are individual Proof or uncirculated coins and in absolute mint condition, they are worth 20 Pence.
There are no rare general circulation British 20 pence coins.
Interest seems to have waned in the 2009 dateless coin, but it may still have some collector value.
Assuming this is the British 20p, they're all still worth face value.
20p it's not that old
I really don’t know I want to find out.
20p
How many fives are worth 20p
20p
It is worth 20p.
Somewhere around 20p
£0.20
20p
20
20p
A British 20p coin with no date present (2008 mule error) may be worth around £30 - £90. Sell it anyway you'll make a load of dosh!
about 20p
20p 1 dollar