Boston   pitch pipe for guitar, plastic

Boston   chromatic pitch pipe, C-C

Heriba   pitch pipe A-440, nickel plated

Wittner   tuning fork, 4,5 mm., round, nickel plated, e1-329.6 Hz.

Wittner   tuning fork, 4x8 mm., square, nickel plated, b1-493.88 Hz.

Wittner   striker for pitch fork on resonance case

Boston   chromatic clip tuner, with multi color display, auto power on/off

Boston   chromatic clip tuner (also G+B+U+V), with full color display, 430-450Hz

Boston   chromatic clip tuner (also G+B+U+V), with full color display, 430-450Hz, violin clip

Boston   clip on tuner pick-up, 90 cm. cable, standard 6.3 mm. jack plug