lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio

photo of lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio #1
more photos of this product below

Lot of three vintage manuals for the old slide rules as shown, all in good used condition.

Keuffel and Esser Polyphase Duplex 4071, book dated 1939

Fredrick Post Versalog, book dated 1951

Aristo Studio - I didn't see a date on this one, mid century.

  • sku: #wr0921159
  • price: $56.50
  • status: in stock
  • quantity available: 1
  • circa: mid century vintage
  1. photo of lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio #2
  2. photo of lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio #3
  3. photo of lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio #4
  4. photo of lot of slide rule manuals instruction books, Post Versalog, K&E Polyphase Duplex, Aristo Studio #5