aneroid capsule tensioned on a C-spring
brass, copper, glass, steel, wood
Presented here is the Ivory Weather Column, a desktop weather station manufactured by G. Lufft Metallbarometerfabrik GmbH, Stuttgart, dated 31 March 1955. This model ranks among the company’s most successful and widely recognized products of the mid-twentieth century, representing an elegant multi-functional household weather station that combines an aneroid barometer, hygrometer, thermometer, and compass within a single architectural composition. In the company’s official catalogue, the instrument was introduced with the following description: “With the Lufft Weather Column, changes in the weather can be observed at any time, making it possible to produce reasonably reliable forecasts in advance. To facilitate its use, the instrument is supplied with a chart explaining the basic principles of weather forecasting.” The instrument was therefore conceived not merely as a decorative furnishing, but as a complete domestic meteorological station enabling its owner to monitor and interpret changing weather conditions independently.
The overall architecture of the instrument is remarkably harmonious and perfectly reflects the aesthetics of German industrial design of the 1950s. The brass column rises from a circular metal base, itself mounted upon a turned wooden plinth resting on three small point feet that provide stability while lending the instrument an elegant, elevated appearance. The central section consists of a tall cylinder of mineral glass, within which the thermometer and hygrometer are fully exposed, allowing their mechanisms to remain visible from every angle. The upper cover incorporates a magnetic compass intended for determining wind direction, while the lower base houses the barometric mechanism behind a broad mineral-glass viewing window through which the atmospheric pressure may be read.
Particular attention should be paid to the decorative finish of the case. The entire instrument is finished in Ivory, a warm cream-toned shade that became one of the defining colours of post-war German industrial design. The surface consists of a glossy baked enamel applied by spray and subsequently oven-cured, producing a durable finish with a uniform lustre and considerable depth of colour. The warm ivory tone harmonises beautifully with the gilded brass fittings, emphasizing both the elegance and lightness of the overall composition.
One of the instrument’s most remarkable features is its unconventional barometer dial. Rather than employing a traditional circular scale, the dial is constructed as a semi-annular conical screen formed from thin stamped sheet metal, essentially taking the shape of a truncated conical sector. Instead of completely surrounding the mechanism, the dial embraces it along a broad arc while leaving a large opening at the rear for the aneroid assembly and transmission linkage. As a result, the scale appears to emerge organically from the base of the column itself and is inclined toward the observer, allowing the reading to be taken equally comfortably from above or from the front.
The dial is finished with a satin gold background designed to imitate finely brushed brass. This finish is applied to the prepared metal substrate and protected beneath a clear lacquer. The graduations, numerals and inscriptions were produced by serial printing, almost certainly by silk-screen printing, with the scale itself rendered as a contrasting pale track carrying crisp black lettering throughout the pressure range. The unusual panoramic form of the dial not only improves legibility but also transforms the lower portion of the instrument into a distinctive architectural pedestal supporting the entire weather column. The panoramic arcuate scale was specifically designed to work with a vertical pointer emerging directly from the centre of the mechanism and moving across the inclined surface. Consequently, the barometer is perceived not as an isolated instrument but as the architectural foundation of the composition: above it rises the transparent cylinder containing the thermometer and hygrometer, while below, the sweeping semi-circular scale forms an elegant instrument “stage” that visually unifies the entire design.
The barometer scale is calibrated in London inches of mercury, covering a range from 28.5 to 30.5 inches, with each inch subdivided into tenths. Instead of the conventional descriptive weather indications, only two simple terms are employed—LOW and HIGH—representing the general tendency of atmospheric pressure. A substantial knurled brass setting ring fitted with a slender reference pointer surrounds the column, allowing the user to mark the previous pressure reading and subsequently observe any rise or fall in atmospheric pressure.
The barometer itself is driven by a conventional aneroid mechanism employing an evacuated metal capsule tensioned by a C-shaped steel spring. Motion is transmitted from the sensitive element to the indicating shaft by means of a miniature fusee chain, providing an exceptionally smooth and precise conversion of the minute displacement of the aneroid capsule into a comparatively large angular movement of the pointer.
Mounted in the upper section of the glass cylinder is a pointer thermometer intended for measuring ambient air temperature. Its arrangement is highly unusual, with the mechanism suspended directly beneath the upper cover of the column, ensuring excellent visibility from virtually every viewing angle. The scale is calibrated in degrees Fahrenheit, indicating that this particular version was intended for the English-speaking export market.
Occupying the lower portion of the glass cylinder is a pointer hygrometer designed to measure relative humidity. Its percentage scale incorporates the customary Dry, Normal and Moist zones, enabling the user to assess indoor atmospheric comfort at a glance. Like the other instruments incorporated into the column, the hygrometer is executed with remarkable simplicity and integrates seamlessly into the overall architectural composition.
The ensemble is completed by a small magnetic compass incorporated into the upper cover. Intended for determining the cardinal directions and observing wind direction during meteorological observations, it serves as both a practical navigational aid and an elegant finishing element that reinforces the instrument’s identity as a comprehensive domestic weather station.
The Ivory Weather Column stands as one of the finest examples of mid-century German scientific instrument design, successfully combining engineering sophistication with architectural elegance and exceptional manufacturing quality. By integrating four independent meteorological instruments into a single harmonious composition, the engineers and designers of G. Lufft Metallbarometerfabrik GmbH created not merely a practical household weather station, but a genuine work of post-war European industrial art, equally significant from technical, historical, and design perspectives.