Deakin & Francis Sterling Silver Plain Square Cufflinks C0791X0002. For the ultimate classic finishing touch, these cufflinks are the perfect choice! Made from sterling silver, these 15mm, plain square cufflinks come with a small domed oval spring link fitting for easy wearing and come complete with a full set of Deakin & Francis traditional hallmarks for authenticity. These timeless cufflinks come packaged in a unique Deakin & Francis presentation box.