Great Britain Philatelic Society

unfortunately I missed the meeting in connection with Stampex as I had booked my return flight to Germany on Friday and had not spoke to Burkhard Beer before.
As we are planning a visit for seberal days with members of the GB and CW PS Switzerland and maybe even combined with the German FGGB I was wondering if there is a meeting of the GBPS planned and if so when? Would it also be possible to bring non-members to it?
thanks
James