ial ▁board ▁( who ▁also ▁had ▁to ▁be ▁a ▁member ▁of ▁the ▁Council ) ▁and ▁the ▁head ▁of ▁the ▁regional ▁cent ers . ▁Further ▁officials ▁– ▁the ▁secretary ▁general , ▁assistant ▁secretary ▁general ▁and ▁five ▁honor ary ▁assistant ▁secret aries ▁– ▁are ▁appointed ▁and ▁particip ate ▁in ▁the ▁work ▁of ▁the ▁b ureau ▁with ▁a ▁voice , ▁but ▁no ▁vote . ▁The ▁Executive ▁Council ▁also ▁elect s ▁a ▁ 1 6 - member ▁editor ial ▁board . ▁ ▁The ▁headquarters ▁of ▁the ▁organisation ▁have ▁histor ically ▁been ▁in ▁London . ▁In ▁ 1 9 6 6 ▁it ▁was ▁located ▁at ▁ 4 0 ▁Good ge ▁Street ▁London , ▁W 1 , ▁while ▁the ▁secretary ▁general ▁operated ▁out ▁of ▁an ▁office ▁at ▁ 1 0 ▁rue ▁Va quel in , ▁Paris ▁ 5 . ▁The ▁headquarters ▁have ▁been ▁moved ▁to ▁France ▁and ▁are ▁now ▁at ▁ 2 6 5 ▁av . ▁de ▁Paris , ▁ 9 3 0 0 0 ▁Mont re uil - s ous - Bo is , ▁France ▁– ▁M ét ro ▁Por te ▁de ▁Mont re uil . ▁ ▁The ▁W FS W ▁tried ▁to ▁set ▁up ▁regional ▁cent ers ▁and ▁hold ▁regional ▁meet ings . ▁The ▁first ▁regional ▁meeting ▁was ▁at ▁New ▁Del hi ▁in ▁ 1 9 5 5 , ▁followed ▁by ▁Prag ue ▁in ▁ 1 9 5 6 , ▁Paris ▁in ▁ 1 9 5 7 ▁and ▁Cambridge , ▁England ▁in ▁ 1 9 6 1 . ▁By ▁ 1 9 6 8 ▁only ▁two ▁regional