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Loga 30 Tt

• Type: Circular
• Size: 5 Inches / 13 cm
• Material: Aluminum and Paper
• Serial Number: 8487
• Scales:
  • Front (as marked): √ √ Ⓐ / Ⓑ Ⓡ x³
  • Front (Traditional): R₁ R₁ D / C CI K L
  • Back (as marked): ← sin tg sin&tg e^x e^x e^x
  • Back (Traditional): D S T ST LL₃ LL₂ LL₁
• HvH: 2801

In zippered leather case. Cursor on reverse tied to inner disk (C index) on obverse. The knob on the reverse spins freely to serve as a pivot for tabletop convenience. The reverse cursor should have a further extension glued to the end of it, but it is missing. Cursor on obverse includes an extra hairline for multiplication by pi, obviating the need for CF and DF scales (as if being circular hadn't obviated that already).