Redwood Green Playing Cards by Richard Edward Limited. Made in the UK.
Richard Edward also used to make some of the Waddington cards but some are also made overseas and Waddington Playing Cards no longer state country of origin on the packets, stopping you from making informed decisions about whether to purchase in light of provenance and sustainability. Waddingtons are now owned by Winning Moves. Winning moves tell me they used to be made in the UK, but that they have moved production over to a factory in Austria.
Richard Edward specialise in the manufacture of games cards, trading cards and playing cards.
Richard Edward are now on Canvey Island, Essex and are owned by Belgian company Cartamundi. It will be interesting to see whether Cartamundi maintain any production in the UK!
The Richard Edwards website and twitter are being rather neglected I’m afraid and as of May 2019 they no longer exist. Cartamundi UK still list their location as being in Canvey Island in Essex on their website as of May 2019, but it is not clear from their website whether any production remains in the UK. The Richard Edwards and Green Playing Cards brands appear to have been discontinued.