Date of use : 1937, Austria

Gebrüder Lorenz Photo-Union Stationery, Austria

This document represents a commercial correspondence illustrating the trade of photographic materials in Europe during the 1930s. The front of the card bears the letterhead of Photo-Union Gebrüder Lorenz, a company operating in Vienna at Franz Josef Kai 47. The printed design includes an illustration of a folding camera and a promotional statement indicating that the firm served as a convenient supplier for a wide range of photographic equipment. Graphic elements of this type were frequently used in commercial stationery as a means of combining advertising with business correspondence.

The text on the reverse side reveals that the document contains a purchase request written in Vienna on 19 January 1937. According to the message, the Photo-Union company ordered four small bottles of a product described as "Retusche Grau" from a manufacturer located in Leipzig. Retouching pigments were specialized materials used by photographers to correct or refine photographic prints. These substances were applied to photographic surfaces in order to eliminate imperfections, adjust tonal transitions, or improve the visual quality of portrait images.

The supplier addressed in the order was Georg Keilitz Lackfarbenfabrik, a factory producing lacquers and pigments in Leipzig. Chemical manufacturers of this type played an important role in the photographic industry because many photographic processes required specialized paints, pigments, and chemical compounds. Retouching materials were particularly important in studio portrait photography, where photographers frequently modified prints to soften skin tones, correct small defects, or enhance background elements.

The postal cancellation on the front side indicates that the item was processed through the Austrian postal system in Vienna. The stamp bears the inscription "Österreich," confirming its origin. The date visible on the cancellation corresponds to the year 1937. At that time Central Europe represented one of the most active regions of the photographic industry, with Germany and Austria serving as important centers of production for cameras, photographic materials, and chemical supplies.

During the 1930s Leipzig functioned as a major commercial hub for the printing and photographic industries. The city hosted the well-known Leipzig Trade Fair, one of Europe's most significant commercial exhibitions. This fair regularly attracted manufacturers and distributors of photographic equipment. As a result, chemical factories and pigment manufacturers located in Leipzig played a central role within the broader supply network of photographic production.

Companies such as Photo-Union Gebrüder Lorenz operated as distributors and intermediaries within this network. They supplied photographers with cameras, photographic plates, films, chemicals, and studio accessories. By linking manufacturers with professional studios and retailers, these commercial firms formed an essential part of the photographic economy of the period.

From a collecting perspective the document belongs to the category of photographic trade ephemera. It also provides direct evidence of the materials used in photographic studio practice. Because the card combines advertising elements with an authentic business order, it offers a rare glimpse into the everyday commercial activities of the photographic industry.

This item is documented as part of the Photography in Postal History research project.
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