Date of use : 1891 Ireland

Carl Zeiss Jena: Optical Instruments & Lenses Factory

The postcard examined here is an official postal stationery item issued by the postal administration of the United Kingdom of Great Britain and Ireland. The inscription "Union Postale Universelle" printed at the top indicates that the card was designed for use within the international postal system established by the Universal Postal Union. By the late nineteenth century this international postal framework had standardized communication between countries and enabled the widespread use of international postcards as an efficient means of correspondence. The imprinted one-penny postal value and the British postal cancellation confirm that the card circulated within the British postal system.

The address section identifies the recipient as "Herrn Carl Zeiss, Jena, Saxe Weimar, Germany." This address refers to the well-known optical manufacturing company founded in the German city of Jena in the region historically known as Saxe-Weimar. The Carl Zeiss company was established in 1846 by the German optician Carl Zeiss. Initially recognized for the production of microscopes, the firm later became one of the leading institutions in the development of modern optical technology. This transformation was largely the result of collaboration with the physicist Ernst Abbe and the glass chemist Otto Schott. Their combined research led to significant advances in the design and manufacture of precision optical instruments including microscopes, telescopes, and photographic lenses.

The message written on the reverse side of the card indicates that the correspondence was sent from London. Within the brief note the phrase "Shark Teeth" is underlined, suggesting that the communication may refer to sample materials intended for scientific examination. During the late nineteenth and early twentieth centuries there existed extensive correspondence networks connecting scientific researchers, laboratories, and optical instrument manufacturers. Such communications frequently involved requests for equipment, discussions of technical specifications, or the exchange of specimens for microscopic analysis. It is therefore plausible that the content of this postcard relates to a scientific or technical inquiry directed to the Zeiss optical works.

Beyond its immediate context, the postcard also illustrates the broader networks of scientific and commercial communication that characterized Europe during this period. Universities, laboratories, and industrial manufacturers maintained active exchanges of information and materials. Optical technology in particular experienced rapid development in fields such as microscopy, astronomy, and photographic optics. The Zeiss factory in Jena occupied a central position within these networks and maintained correspondence with scientists and institutions across Europe and beyond.

From a philatelic perspective, the card may be included in several collecting categories. It represents an example of international postal stationery produced within the framework of the Universal Postal Union. At the same time it holds significance for the history of science and the optical industry, as it documents correspondence directed to the Carl Zeiss company. Consequently the item may also be of interest to thematic collections focused on the history of optical technology, scientific communication, and industrial networks.

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