Upper half: Adoration of the Magi
Lower half: Pietà with St James the Greater and St Ursula; figures of male and female donors kneeling at either side. On the table on which they kneel are two paired shields of arms.

source: British Museum website

A round relief of the Virgin and Child with St Anne. Below them are figures of a male and female donor at prayer desks, the man presented by St James the Greater, and the woman by St Michael. The relief is mounted in a silver miniature altar in the form of a triptych, with hinged semi-circular wings. The console is pierced with a quatrefoil diaper. The wings are decorated with foliate designs. The top has an escutcheon with the head of a cherub, topped by a figure of God the Father.

-from V&A site

The beads are graduated, with the largest being the Paternoster. Each bead has fourteen sides, four of which have space for a scene.
Paternoster bead: St. Judas; Resurrection of the Dead (2 scenes); blank
Ave beads: Each apostle can be identified by a shortened form of his name, his attribute and a scroll containing the initial letters of his part of the Apostles' Creed.
1. St. Peter; The Creation of the Heavens; The Creation of the World; the Creation of the Sun, Moon and Stars
2. St. Andrew; Ecce Homo, Man of Sorrows, Ruler of the World

Scenes from the Life of Saint James the Greater from the Golden Legend: Exterior scenes clockwise: Hermogenes flanked by two devils presented to St. James; St James watches Hermogenes, another male figure drop books into basket; Hermogenes and Philetus throw books into sea; St. James preaching; St. James with bound hands being led by Abiathar to Herod; St. James curing man of palsy
Inner lower: St James being presented to Herod

Inner upper scenes clockwise: St. James led by rope; man being beaten; Centre, foreground: St James baptizing Josias; beheading of St. James