• The modern clock

    by Ward L. Goodrich
    1905, Hazlitt & Walker

  • Modern methods in horology

    by Grant Hood
    1904, Kansas City Jeweler and Optician

  • The watchmakers' staking tool

    by Archie B. Perkins & George C. Lucchina
    1987

  • The watchmakers' lathe, its use and abuse

    by Ward L. Goodrich
    1903

  • Proper use of the watchmaker's graver

    by Homer A. Barkus
    1947