Lawrence Engineering Services Traffic Manager's Slide Rule (for PIC-Walsh Freight Co.)

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Country of manufacture: USA,            Date of manufacture: >= 1939
Overall length: 28.4 cm,          Width: 2.9 cm,           Weight: 34.6 gms
Materials: painted wood, closed form simplex type
Cursor: 2.3 X 3.0 X 0.6 cms; metal frame holding plastic lens; lines = one on front only
Scales: 4
Front: Class Rate [ Percent Class, Weight ] Rate and Charge
Back: Company branch office occasions
Back of Slide: Blank
Gauge Marks: [     ]
Condition: C2 (Mint but extras not in mint condition)
Came with: Cardboard Case

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