other musicians who own or play tecchler instruments include anne martindale williams, principal cellist of the pittsburgh symphony orchestra, who plays a tecchler cello made in rome in 1701;, the israeli-born cellist guy fishman, principal cellist of the handel and haydn society in boston plays a cello made in rome in 1704, and formerly owned by casals disciples marie roemaet rosanoff and later lief rosanoff. the young turkish cellist benyamin sönmez (+2011), who played a cello made in rome in 1723; martha babcock, assistant principal cello at the boston symphony orchestra and principal cello for the boston pops owns a tecchler known as the "ex-feuermann", made in rome in 1741; the danish cellist jakob kullberg, known for his collaborations with the composer per nørgaard, plays a tecchler cello made in 1703 in rome; the israeli cellist yehuda hanani performs on a 1730 tecchler of particular beauty, tonally and visually, previously in the possession of the von mendelssohn family; stephen lansberry, a former uk music professor, now living in france, owned, for forty years, an instrument made in 1727; marcy rosen, soloist and member of the mendelssohn string quartet, plays an exceptionally beautiful tecchler cello dated 1720. her cello, owned by the famous francais family of luthiers for three generations, was shown in jacques francais's lincoln center stainer exhibition in the 1980s.