Cufflinks by Hannah Louise Lamb Hand pierced cufflinks featuring the iconic River Thames. Positive/negative design with matt and polished finshes. Designed and handmade by Hannah Louise Lamb. Features Primary Material : silver Fitting Type : hinged bar Dimensions (mm) : 1.9x1.9x0.1 One of a Kind : No Hallmarked : Yes Cleaning InstructionsSIlver dip, rinse thoroughly and dry.