细节
Seven roundlett corkscrews,
comprising a spherical joint marked Reg'd Jany 16th 1873; an American bullet marked Pat June 97; a roundlett, traces of plating, marked Williamson Patented June 97; a six-tool roundlett; a four-tool example; and two further roundletts, one tool marked Williamson 1900. (7)
comprising a spherical joint marked Reg'd Jany 16th 1873; an American bullet marked Pat June 97; a roundlett, traces of plating, marked Williamson Patented June 97; a six-tool roundlett; a four-tool example; and two further roundletts, one tool marked Williamson 1900. (7)