Latin text:
IN FIDE JESU CHRISTI SOLEMNIGAR COLLOCAVIS LAPIDAM ISTUM PRIMARISIM
P[ATER] DA MARIA PROVIC[AR] APOST[ULUM]
DIA X. DECEMBRIS A.D. MDCCCCIV
Translation:
IN FAITH IN JESUS CHRIST I SOLEMNLY LAY THIS FIRST STONE
FR. DA MARIA PRO-VICAR APOSTOLIC [of Hong Kong]
DAY 10 DECEMBER A.D. MDCCCCIV (1904)
(photo is from 2011)