[Violin]. Mason, Geo. E. Mason's Instructions for Fingering, or the Fretted Violin. A Diagram for the use of Students. Brooklyn, NY: Bunce and Benedict (Entered According to Act of Congress by Mary Mason), 1883. Engraved Broadside. 645 x 265 mm. Folded, some closed tears, very good.
An actual size diagram of a violin. No copies located by OCLC, though a 1977 reprint is at the British Library Reference Collections. (#kfk335) $1,250.00

N. B. It is especially hard to convey the charm of this object through photography.