Copper-alloy, 3.37 grams, 27.39 mm. 5th-6th century AD. Anglo-Saxon disc brooches come in several varieties, of which the ‘pierced’ or ‘openwork’ type is of restricted distribution in the east Midlands. The most common form is the ‘swastika’ pattern with T-shaped piercings. The present example is the rarer subtriangular cut-out variant forming a reserved ‘expanding arm cross’ in the centre. Complete with the catch plate and the remains of the pin on the reverse. Reference: MacGregor, A. & Bolick, E. A Summary Catalogue of the Anglo-Saxon Collections (Non-Ferrous), Oxford, 1993 p.69. Found Lincolnshire.