Vintage Pickett & Eckel slide rule lot including two rules, original leather case, and the matching instruction booklet.

Lot includes:

Pickett & Eckel Model D-11-1 Deci-Log Log Slide Rule — full-size engineering slide rule, copyright 1947, Chicago. Features extensive scale set including DF, CF, T, ST, S, CI, C, D, DI, √, and Log Log scales. Aluminum construction with metal end brackets and cursor. Significant paint/finish loss and spotting on face and back — functions as a display or parts piece; cursor moves.

Pickett Model F-10-1 Small Slide Rule — smaller companion rule in better condition with A, B, C, D scales and metal cursor. Functional.

Original leather case — heavily worn and crumbling but present.

"How to Use the Deci-Log Log Slide Rule" by Maurice L. Hartung, University of Chicago — original instruction booklet published by Pickett & Eckel. Worn cover with pencil marks, interior intact.

Condition: Large rule has significant cosmetic wear including paint loss and spotting — sold for display, collection, or parts. Small rule in better condition. Case is heavily deteriorated. Booklet is worn but readable. Sold as-is, no returns.

Shipping: Buyer pays actual shipping. Local pickup welcome in Pennsville, NJ.