Complex sentence: Although the overall form was similar to Steinberger's, the Duke series had an aluminum/wood neck, wood body, and standard tuning pegs with gears were located at the bridge-end of the instrument.
Split into simpler sentences: Although the overall form was similar to Steinberger's, the Duke series had an aluminum/wood neck and wood body. Standard geared tuning pegs were located at the bridge-end of the instrument.