Fuller Cylindrical Slide Rule Calculator in Original Mahogany Case with Literature

A remarkable example of pre-electronic computing, this antique Fuller Cylindrical Slide Rule Calculator is housed in its original mahogany case and retains its original cursor arm, instruction label, and Stanley surveying literature. Used by engineers, surveyors, naval architects, and scientists before the advent of electronic calculators, the Fuller Calculator is considered one of the most sophisticated mechanical calculating instruments ever produced. Unlike conventional slide rules, the Fuller employs a cylindrical design that wraps scales around the drum, creating an extraordinarily long effective scale length and allowing calculations with exceptional precision. This ingenious design made it a preferred instrument for professional engineering and surveying work throughout much of the twentieth century. The calculator remains attractively displayed in its fitted case with original brass hardware and distributor plaque from E. Sdale & Sons Pty. Ltd., Sydney. The scales are clean and legible, the cursor assembly is present, and the original Stanley "Surveying and Drawing Equipment" booklet accompanies the instrument. Condition: Very Good Condition Dimensions: 18" L × 4.75" W × 4.5" H Features Original Fuller Cylindrical Slide Rule Calculator Original mahogany fitted storage case Brass cursor arm and indicator assembly present Original Stanley surveying literature included Original instruction label inside lid Distributor plaque from E. Sdale & Sons Pty. Ltd., Sydney Highly decorative scientific and engineering display piece Functional mechanical calculator and collectible scientific instrument Condition Notes The instrument presents very well overall. The wooden case shows expected age-related surface wear, scratches, and handling marks consistent with decades of use and storage. Interior components remain clean and display beautifully. Paper ephemera show light age toning. Please review photographs carefully for complete condition details. Historical Significance Invented by George Fuller in the late nineteenth century, the Fuller Cylindrical Calculator became one of the most advanced slide-rule designs ever manufactured. Its precision and complexity made it indispensable for engineers, architects, surveyors, naval designers, and scientific professionals until electronic calculators rendered such instruments obsolete. An exceptional addition to any collection of scientific instruments, engineering antiques, surveying equipment, maritime technology, or industrial history. An increasingly difficult-to-find complete example with original case and literature