White & Gillespie (W&G) 454 Dual Face Artillery & Survey

---

Country of manufacture: Australia,            Date of manufacture: ____
Overall length: 35.0 cm,          Width: 4.4 cm,           Weight: 140.3 gms
Materials: Celluloid laminate onto wood, metal end braces, adjustable
Cursor: 3.0 X 5.8 X 1.2 cms; plastic runners, metal framed glass lens, adjustable; lines = single line, front and back
Scales: 12, extensions on A, B, C, Reciprocal, D, Range
Front: L, A [ B, Reciprocal, C ] D, Cu
Back: Sine [ Angle 2, Angle 1 ] Range, Tan
Gauge Marks: [ π, M (3183), C (1128), C1 (3568), Y (9144) ]
Condition: C5 (normal signs of use)
Came with: Original heavy black cardbox/case

---

---