Unidentified photographer / artist, 1871, Dark tent - invented by L. Herzog, in Bremen, Book illustration, Google Books, LL/34881
Unidentified photographer / artist 1871 Dark tent - invented by L. Herzog, in Bremen
Book illustration Google Books Published in "Handbook of the Practice and Art of Photography" by Dr. Hermann Vogel, translated by Edward Moelling (Philadelphia: Benerman & Wilson, 1871), p.214, fig.69.
A similar tent construction, and one which is very solid, is described by Ph. Retnele in his excellent Handbook of Landscape Photography. The tent is the invention of L. Herzog, in Bremen. The most essential part of the whole tent is the box necessary for the transport of apparatus and chemicals. The box is opened and four strong wooden legs are attached; on the top a folding iron rod, a, is pushed in the corresponding holes and fastened by the rods, b, b; over-the rods a tent cloth is thrown, and with hooks it is fastened to the eyes, c, c, above, below, and on both sides. The tent cloth should be double at the sides, that it may be hooked in the interior of the box in a similar manner. At the lower extremity the tent cloth has an opening; the operator creeps into it and ties it light-tight around his waist. At b> there is a door in the box, which can be opened and shut, and here a window of oiled silk is fixed in.
The best material for a tent is the so-called India-rubber cloth; the hooks are fastened to it with gum bands. Overhead a yellow window of oiled silk is placed. This tent is remarkably solid, offers much space for working, and has, finally, the advantage that one can work in it without wasting a drop of silver or any other solution on the floor.