The solo-model guitars by Hermann Hauser I are known to be instruments that are easy to play. They have a powerful sound and a long lasting resonance. Due to its manifoldness, this instrument can be used as a solo instrument or in chamber music. The two-piece top is made of spruce wood and is framed by dark and light purflings, just like the sound hole as well. The two-piece back as well as the two-piece ribs are made of strongly flamed maple. The head is connected with the neck by a German neck spine. The neck is screwed to the body and can be adjusted individually. The fingerboard has a zero fret and protrudes the sound hole. The machine heads are original and are in excellent condition. The top has four repaired and stable cracks.