Unique Navigational

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.3 cm,          Width: 3.8 cm,           Weight: 60.9 gms
Materials: printed paper scales laminated and pinned onto box wood frame and slide
Cursor: 2.9 X 4.5 X 0.6 cms; all plastic; lines = single line, front only
Scales: 10, extensions on A, B, C, D
Front: 1:50000 || S, A [ B, S, T, C ] D, T || 1:1000000
Back: Conversion factors, navigational factors
Gauge Marks: [       ]
Condition: C4 (signs of minimal use)
Came with: Original black cardboard box

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