C.A.T.C-A.E.F
... that the pro-Catholic trade union C.A.T.C-A.E.F held the Brazzaville P.O. Box 666?
... that the pro-Catholic trade union <b id="mwA1M"><a href="./Confédération_africaine_des_travailleurs_croyants_de_l'A.E.F" id="mwA1Q" rel="mw:WikiLink" title="Confédération africaine des travailleurs croyants de l'A.E.F">C.A.T.C-A.E.F</a></b> held the <a href="./Brazzaville" id="mwA1U" rel="mw:WikiLink" title="Brazzaville">Brazzaville</a> P.O. Box <a href="./666_(number)" id="mwA1Y" rel="mw:WikiLink" title="666 (number)">666</a>?