Novotni Flat Rolled Weight Slide Rule

Country of manufacture: USA,            Date of manufacture: ____
Overall length: 63.5 cm,          Width: 10.8 cm,          Thickness: 1.3 cm,           Weight: ______ gms
Materials: Some type of Masonite/paper sandwich or laminate
Cursor: no cursor
Scales: 4
Front: Width (Inches) [ Thickness (decimals, fractions, lbs/sq.ft., gauge), Length (inches ] Weight (pounds)
Slide Back: Floor Plate Patterns (Super Diamond, Std. Diamond, Diamondette, Sunken Diamond), Length (inches)
Back: Blank
Well: Blank except for I.D.: "Novotni Weight Slide Rule, Media, PA"
Condition: C5 (Normal signs of use)
Came with: Nothing