1941 Caterpillar Diesel Tractor, Models D2, D4 Lubrication Diagram

This original magazine page measures 8.5 x 11 and dates from 1941.  It showcases the Lubrication Diagram for the Caterpillar Tractor models D2 and D4.  It is excellent condition. Ready for use or framings and display. The page is a light yellow color, not because the paper is aged, but because that is the color it was printed on.