Herman/Howard Miller still sell George Nelson clocks?  

The attached image shows the only (I think) Nelson clock that Howard Miller still carries. If you'll go to Howard Miller's website there's a button at the top-right where you can locate a dealer in the UK; they only list one: SHAWCROSS / SOAMES CLOCKS. Also, Herman Miller and Howard Miller are no longer associated with each other.

Note that the current Howard Miller Nelson clock(s) do not use the same materals as the originals.  Vitra produces reissued Nelson clocks that are close to the original designs (and hence more expensive).

It's a pretty cheap clock, well under $100.   
A 42" version has also been introduced, no kiddin'-
http://www.howardmiller.com/ProductDisplay?catalogId=13551&storeId=12652...