Boston Concert Series   string set classic, clear trebles & silverplated wound basses, normal tension

Boston Concert Series   string set classic, clear trebles & silverplated wound basses, hard tension

Boston Concert Series   string set classic, clear trebles & silverplated wound basses, normal tension, with ball ends

Boston Artist Series   string set classic, clear trebles & silverplated wound basses, normal tension

Boston Artist Series   string set classic, clear trebles & silverplated wound basses, hard tension