English: Cast lead pilgrim ampulla or holy water flask with the neck bent forwards and almost folded closed to seal it. The ampulla is bag shaped with protrusions or lugs on either side of the neck which are the remains of the suspension loops, used to suspend the flask from a cord around the pilgrim's neck. It is decorated on one side with moulded ridges radiating from the centre to imitate a scallop shell. Beneath the shell there is a rectangular stand or box with an incised lattice pattern. The back of the ampulla has a circular stamp, following the curvature of the body, with a crescent within it, at the base.

The scallop shell was originally the emblem of the apostle St. James the Greater, of Compostela, but soon became a generic symbol of pilgrim saints and pilgrims. These ampullae were bought by pilgrims from pilgrimage sites, and contained thaumaturgic (miracle-working) liquids such as holy water or water from sacred springs. They were popular souvenirs from around 1175 until the early 14th Century, when pilgrim badges became more favoured, but they continued to be made, some smaller to be worn as badges, and some more robust, functional and standardised, like this example, into the 15th century.

Spencer (1990) illustrates similar ampullae on pages 87-8, Figs.175 & 179, which are dated, along with the group from Salisbury, from c.1350-1530. He refers to this type of scallop as Type II on page 59, which 'more nearly resembles the common cockle, with fine grooves and smooth edges.'