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Scientific Apparatus
Slide rule, Post Versalog 1460

Slide rule, in leather case. Manufactured for Frederick Post Co. by Hemmi in Japan. Serial no. 909123; catalog no. 1460. Material is plastic on bamboo; cursor is glass (cracked) in metal frame. Case is marked on inside flap in ink: "Carl Sagan, Astronomy, Harvard U., Cambridge, Mas[s]." Ca 1960s.

ID: 2003-00312
Sagan, Carl

MEDIUM: Plastic, bamboo; LENGTH: 10-inch scale; overall 12.5 inches; QUANTITY: 1

Topics: Astronomy, Mathematics

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