As a member of the Legion of Mary (a group of lay people in Catholic Church),
these two things in my picture are the symbol of the connection in this organization.
The prayer leaflet, caled Tessera, containing the prayer for all the legionaries, and bearing the reproduction of the Legion picture. Tessera originally a Latin word, which means a tally or token that distributed among the members, so we might always recognize each other, and also as a symbol of unity and fraternity between all the legionaries.
In the leaflet, there is a prayer called Catena. Catena is a Latin word that means chain, and this is our spiritual chains, as we pray this Catena every day.
The rosary is our special devotion to the Blessed Virgin Mary, and also the important part in our daily life as the members of the Legion of Mary.
All of these things are the bonds which unites one another of the member in spirtual way, and also connecting us to Mary, our Blessed Mother.