Cufflinks Silver 830 Carl M. The description of this item has been automatically translated. Cufflinks silver 830 Carl M. Very nice cufflinks (cufflinks) made around 1920 from 830 silver. Hallmarked with: master mark + 830 + 50 (see picture). Size of the heads approx. _gsrx_vers_1516 GS 9.3 (1516). COHR DENMARK Very nice cufflinks (cufflinks) made around 1920 from 830 silver - Material: 830 silver - hallmarked with: master mark + 830 + 50 (see picture) - size of the heads approx.