If an auxiliary shutter is present, it may perform the function of the lens cap. After the exposure the dark slide is replaced to protect the exposed plate from stray light. The plate holder is either turned for a second photo, or brought to the darkroom for plate development and copying. The camera would be supplied with a number of plate holders, each usually holding two plates, one on either side. The Reisekamera was a popular wooden bellows view camera of the tailboard design, manufactured in large quantities in specialised cabinetmaker's workshops of the eastern regions of Germany from about 1860, but reaching peak popularity in the decades around 1900. These cameras would be distributed through well-known camera manufacturers situated in cities like Görlitz or Dresden, but would also emerge elsewhere and abroad, sometimes nameless and sometimes with the distributor or warehouse names attached, a fact causing considerable confusion with regard to origin. The Reisekamera is, regardless of the maker, quite similarly built and of almost standardised design, often without maker's identification. The collector's usual practice to identify some of these cameras by its name plate, if present, or even by the lens attached, results in almost identical cameras being attributed to more than one brand name. The original designer or manufacturer has not been ascertained, but it is thought to originate in the Saxony region of Germany around 1860, and in fact, many Reisekameras came from Dresden or Görlitz in particular. This region had a highly specialised woodwork industry well suited for camera manufacture. As the type became popular, manufacture of similar cameras took place worldwide, but these are more often than not clearly marked with the manufacturer's name. Possibly the best known Reisekamera is the Globus, manufactured by Ernst Herbst & Firl, Görlitz for the camera manufacturer Heinrich Ernemann in Dresden.