Combination Dividers + Calipers, Pat'd March 31 1885 by Oscar Stoddard of Detroit, Michigan. Brass with dark patina, oxidized steel. Missing two of its adjustment screws but otherwise intact in solid condition for an unusual patent.
Combination Dividers + Calipers, Pat'd March 31 1885 by Oscar Stoddard of Detroit, Michigan. Brass with dark patina, oxidized steel. Missing two of its adjustment screws but otherwise intact in solid condition for an unusual patent.
