Vintage Key and Chord slide rule, published by Metrochord in 1952 and measuring 10” X 3”. Slide rule is completely functioning and provides the basic chords in all keys.
Published: Chicago, Metrochord Co., 1952
Condition: Surfaces tanned with mild staining and rubbing to surfaces. Some edge wear present.
Comments: Nice vintage find
——————————————————
Thank you for browsing with us!
Follow us on Instagram:
https://instagram.com/sterlingvintagebooks
