Single-sided seal of Dunfermline Abbey, c.1200, depicting the abbey church with a porch; within is either an altar with a chalice (Stevenson and Wood), or a font (Greenwell and Blair). A hand of blessing issues from above.
Image description (reverse)
SIGILLVM SANCTE TRINITATIS (“Seal of the Holy Trinity”)
Dimensions: 1 11/16 in. diameter according to Stevenson and Wood; cf. Greenwell and Blair's Durham example, apparently measuring 22 mm.
SW I, p.178.