PHOTOGRAPHY IN POSTAL HISTORY

Vol. 1, No. 27 • Spring 2026

Document Analysis

Der Photo-Porst invoice, Nuremberg, 8 July 1937

❧ Chapter ❧

A Complete Commercial Transaction: The Photo-Porst Invoice (1937)

Nuremberg, Germany • 8 July 1937

Companion document to the letter discussed in Vol. 1, No. 26 (p. 26)

T his document, dated 8 July 1937, is an invoice (Rechnung) issued by the Nuremberg-based firm "Der Photo-Porst." Its attribution to Herbert Klingst—who is also identified in the previously analyzed correspondence (discussed in the earlier article, p. 26)—clearly indicates that this record forms part of a broader commercial transaction rather than an isolated document. In this respect, the invoice should be understood as the financial and administrative counterpart to the earlier letter announcing the dispatch of the camera. When read together, these documents allow for the reconstruction of a complete commercial process encompassing order, shipment, and billing.

The issuing company, Photo-Porst, was founded in the early twentieth century by Hanns Porst (1880–1958) and rapidly developed into one of the largest distributors of photographic equipment in Germany. The firm distinguished itself through its effective use of a mail-order business model, enabling it to reach a wide customer base across the country. Operating from its headquarters in Nuremberg, Photo-Porst functioned not merely as a local retailer but as a nationwide distribution network. The invoice itself, with its detailed listing of branch locations, communication channels, and banking information, reflects the firm's institutional scale and well-established financial infrastructure.

"When read together, these documents allow for the reconstruction of a complete commercial process encompassing order, shipment, and billing."

The recipient, Herbert Klingst, is located in Obercunewalde in the region of Saxony. The structure and content of the invoice suggest that the recipient was likely an end user rather than an intermediary retailer, which further supports the interpretation of Photo-Porst's direct-to-consumer sales strategy. Although the document does not specify the recipient's profession, it is plausible that Klingst was either an amateur photographer or an individual with a personal interest in photographic practice.

The itemized content of the invoice reveals that the primary object of sale was a camera described as "Standard 6/9 with Agfa Anastigmat 1:4.5/105 mm Automat L II." This designation corresponds to a medium-format (6×9 cm) camera, a widely used format in Germany during the period. The inclusion of an Agfa Anastigmat lens indicates a level of optical quality associated with reputable contemporary manufacturers, suggesting that the product was intended for both advanced amateurs and semi-professional users. The invoice also lists an additional item, "Lomberg Ortho Film B II," demonstrating that the transaction extended beyond the camera itself to include essential photographic consumables. The total amount, together with a 3% discount (Skonto), provides insight into prevailing commercial practices, particularly the use of early payment incentives to facilitate cash flow.

The broader historical context of the document is particularly significant. The year 1937 falls within a period in which the National Socialist regime in Germany had consolidated its control and was actively restructuring the economic system. Despite this, the photographic sector remained vibrant, serving both civilian and state-related functions, including documentation and propaganda. The prominence of firms such as Agfa in production, combined with distribution networks like Photo-Porst, underscores Germany's strong position in photographic and optical technologies during this period. In an international context, Germany was a major exporter of optical and chemical products, a factor that also influenced the quality and availability of goods within the domestic market.

From a philatelic perspective, although the document itself is not a mailed envelope, it nonetheless offers valuable insight into the commercial postal system. The standardized format of the invoice, the inclusion of reference numbers, and the clearly defined delivery and payment terms all point to a highly organized system of business correspondence. References such as "Porto und Verpackung" indicate that shipping and packaging costs were calculated as separate items, reflecting the logistical considerations of mail-order commerce. The typographic design of the document is also noteworthy, combining functional clarity with a strong corporate identity.

From a collecting standpoint, this invoice is of considerable significance. While it holds intrinsic value as a standalone commercial document, its importance is substantially enhanced when considered alongside the previously discussed letter. Together, these materials form a coherent archival unit that strengthens the narrative potential of a collection. The document may be situated within several thematic categories, including the history of photography, commercial documentation, German industrial history, and the study of mail-order systems. Furthermore, its documentation of a direct transaction between a company and an individual provides a valuable microhistorical perspective.

In conclusion, this invoice constitutes a significant historical record illustrating the mechanisms of photographic equipment trade in 1930s Germany. When analyzed in conjunction with the related correspondence, it reveals the full sequence of a commercial transaction, from order placement to delivery and financial settlement. As such, the document should be understood not merely as an accounting record, but as a multilayered source that sheds light on the economic structures, technological circulation, and commercial networks of its time.

— ♦ —

RECORD INFORMATION

Title:

A Complete Commercial Transaction: The Photo-Porst Invoice (1937)

Category:

Photographic Industry History / Mail-Order Commerce

Subcategory:

Commercial Documentation / Financial Records

Country:

Germany → Germany

City:

Nuremberg → Obercunewalde, Saxony

Date of use:

8 July 1937

Company (Sender):

Der Photo-Porst, Nuremberg, Germany. Founded by Hanns Porst (1880–1958) in the early twentieth century. One of the largest distributors of photographic equipment in Germany, known for its mail-order business model.

Recipient:

Herbert Klingst, Obercunewalde, Saxony, Germany. Likely an amateur photographer or photography enthusiast. Also the recipient of the companion letter discussed in Vol. 1, No. 26 (p. 26).

Products:

Standard 6/9 camera with Agfa Anastigmat 1:4.5/105 mm Automat L II lens; Lomberg Ortho Film B II.

Object Type:

Commercial invoice (Rechnung)

Postal Features:

No postal markings – references shipping costs ("Porto und Verpackung") and includes banking information for payment.

Language:

German

Material:

Printed invoice form with typewritten entries

Dimensions:

Standard invoice format

Collection Theme:

Photo-Porst, Hanns Porst, Nuremberg photography trade, German mail-order commerce, Herbert Klingst, Standard 6/9 camera, Agfa Anastigmat, medium-format photography, 1930s Germany, commercial correspondence, invoice documentation.

Archival Significance:

This 1937 invoice from Der Photo-Porst forms a complementary archival unit with the letter discussed in Vol. 1, No. 26, together documenting a complete commercial transaction—from order and shipment to billing—that illustrates the mail-order distribution model of the German photographic industry in the 1930s.

RESEARCH NOTE

This article is based on historical research and independent analysis of the material in the author's collection. The text has been prepared as an original interpretative study and does not reproduce copyrighted material.

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

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