Versalog Slide Rule Instruction Manual: Post Versalog Slide Rule Instruction...

The Versalog Slide Rule An Instruction Manual E. I. Feisenheiser 1951 Hardcover

Versalog slide rule instruction manual

Versalog Slide Rule: An Instruction Manual by E. I . Fiesenheiser, Hardcover

The Versalog Slide Rule An Instruction Manual E. I. Feisenheiser 1951 Hardcover

Versalog Slide Rule Instructions Manual by E.I. Fiesenheiser 1951 w Keychain

The Versalog Slide Rule: An Instruction Manual by unknown author

The Versalog Slide Rule: An Instruction Manual by E. I . Fiesenheiser