This is an original Singer List of Parts booklet printed in 1955 for the Singer 301-1, 301-2, and 301-3. These List of Parts booklets are very rare and contain diagrams, specifications, and part number lists for the specified machine. The 301 is considered the big sister to the Featherweights as it was made from cast aluminum and uses the same bobbin case.
The book is 5" wide and 8.5" tall and has 59 pages.