I'm getting this just trying to log in from my work computer (after entering username and password)

Sorry for the delay in answering.

If you're talking about UNC, then I'm afraid I dont have any to swap.
I don't have much in the way of circulation ones either, as the interesting ones (especially in good condition) tend not to appear all that often.

A good place to start is the British Royal Mint web site, they have a section which gives some details of what they have issued: http://www.royalmint.com/discover/uk-coins/coin-design-and-specifications .

Another useful site is Tony Clayton's 'Coins of the UK' : http://www.coins-of-the-uk.co.uk ...