Oak is a common material for many purposes, but it is unusual to find it on the back and sides of a guitar. The heavily V shaped neck with slotted peghead is likely Poplar, while the fingerboard is a dyed, hard and tight grained wood like Maple. It features a ladder-braced Spruce top and Oak for the sides and back. This Lyon & Healy Washburn Oak parlor guitar, built in Chicago in the 1920s, is an example of the instruments available at that time. Around the start of the twentieth century, Lyon & Healy were one of the larger musical instrument builders in the USA, with Washburn being one of their brands.
