One of a Kind — 1 Available
Vintage Slide Rule LL1 LL2 LL3 Log Log Scale with Cursor – Engineering/Architect Calculating Tool
Viridian Eclection
$78.40
Save $34.30
Appraised value $112.70
Era
Tools
Material
See description
Condition
Excellent Vintage
Provenance
Documented
Professional Packing
Foam, crating & fragile handling
Condition Guaranteed
Documented & photographed
Private Viewings
Reno, NV & free white-glove within 100 mi
Antique Shipping Policy
All antique and vintage items are sold as described. We professionally pack every piece with museum-grade foam, layered boxing, and fragile handling instruction labels. Once in carrier hands, liability transfers to the carrier. Shipping damage claims must be filed with the carrier directly. All sales are final. Questions about a piece before purchasing?
Description A vintage slide rule featuring advanced log-log scales (LL1, LL2, LL3), designed for engineering and scientific calculation prior to the widespread use of electronic calculators. This e...
Condition
Excellent Vintage
Dimensions
Era
Tools
Availability
One of a Kind — 1 Available
Description
A vintage slide rule featuring advanced log-log scales (LL1, LL2, LL3), designed for engineering and scientific calculation prior to the widespread use of electronic calculators.
This example is constructed with a dual-rail frame and a clear sliding cursor, allowing for precise alignment across multiple scales. The inclusion of log-log scales indicates it was intended for more advanced calculations, including exponential functions and higher-level mathematical work, rather than basic student use.
Housed in its original fitted case, the piece presents well both as a functional instrument and as a display item. The scales remain legible, and the cursor moves smoothly across the rails. Light wear is present consistent with age, but overall condition is clean and intact.
Slide rules like this were essential tools for engineers, architects, and technical professionals throughout the mid-20th century, representing a pre-digital era of analog precision and craftsmanship.
A strong example for collectors of scientific instruments, engineering tools, or mid-century technical design.
Features & Details
| Feature | Details |
|---|---|
| Type | Slide Rule / Engineering Calculating Instrument |
| Era | c.1940s–1960s |
| Scales | Logarithmic + Log-Log (LL1, LL2, LL3) |
| Frame | Dual-rail construction |
| Cursor | Clear sliding cursor for precision alignment |
| Material | Metal frame with printed scale inserts |
| Case | Original fitted case included |
| Condition | Good vintage condition; light wear consistent with age |
| Functionality | Cursor moves smoothly; scales remain readable |
| Use | Engineering, scientific calculation, collectible display |
| Notable | Advanced log-log scales for higher-level mathematical functions |
Every piece is packed with professional-grade materials: multiple foam layers, double-boxing, directional and fragile handling labels. For large furniture we use custom timber crating. We photograph packing before dispatch and can provide images on request.
White-glove delivery is complimentary within 100 miles of Reno, NV. National shipping quotes provided at checkout. All shipments are photographed and documented. Damage claims must be filed with the carrier; we provide all documentation needed to support your claim.
Local pickup is available at Viridian HQ (Reno, NV) with 2–4 days notice. Contact us to arrange. Private viewings also available.
All antique and vintage items are sold as described and all sales are final. Each listing includes detailed condition notes and photographs so you can make a fully informed decision. We encourage buyers to ask questions — about condition, dimensions, finish, provenance — before purchasing.
Antiques are irreplaceable and one-of-a-kind. Carrier handling is outside our control once a piece has left our facility, and major carriers including FedEx do not insure antiques. We do everything within our power to ensure safe transit, but cannot accept liability for carrier damage. If damage occurs in transit, we will provide full documentation to support your carrier claim.
Have a question? — we're happy to provide additional photos, condition detail, or discuss the piece directly.
Antique
Verified Era
Authenticated period piece
3
Photo3
Full condition documentation & detail shots
Excellent
Condition
Professionally assessed & photographed
1 of 1
Available
One of a kind — this exact piece, never restocked
All Sales
Final
Questions before buying?
