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