B67-637 FRAMED BRACE. Marsden Bros. Ebony with lever-type chuck. The "Improved" version, which predates the "Most Improved" with the greyhound mark. The ebony head is based on Marsden's 1847 registered design No. 986 and has the 986 medallion, no provision for an ivory ring. The wood is very clean; brass has been polished but is toning down. According to Reg Eaton's survey, Marsden represents 4% of all known Ultimatum style braces. From the collection of David Jeffers. Fine 300-600