Vintage Master Key Chromatic Pitch Instrument Model A440
$ 8.8$ 5.28
Availability: 35 in stock
Condition:Excellent Condition
All returns accepted:ReturnsNotAccepted
Description
Size Guide
Description
This unit is the most sanitary and practical device for the purpose of obtaining proper pitch of a musical note. This unit is a product of the WM. Keats Co. of Union, NJ. The two patents on this unit are 1538336 and 1796795.