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上海计算尺厂 1004型飛魚双面计算尺
Shanghai Slide Rule Factory Flying Fish 1004 Vector Trig

• Type: Hyperbolic Log Log Duplex
• Size: 10 Inches / 25 cm
• Material: Plastic
• Scales:
  • Front: Th Ch K A [ B T ST S C ] D DI Sh2 Sh1
  • Back: LL01 LL02 LL03 DF [ CF CIF L CI C ] D LL3 LL2 LL1

飛魚双面计算尺 (Flying Fish Two-Sided Calculating Rule) 1004 is a vector trig rule with functions for all your hyperbolic trig needs. The styling is similar to the Aristo hyperlog line, with scale extensions and self-documenting scales.

With plastic hardcase and manual in Chinese.