Wratten and Wainwright were established by 1877 at 38 Great Queen Street, London, where the company described themselves as 'photographic chemists and manufacturers of photographic apparatus'. They were primarily makers of photographic plates using the 'London' trade name. The firm was absorbed by Kodak Ltd in 1913. Early in their history the firm advertised a range of cameras and equipment before concentrating on their sensitised goods business.

The Perfect Model dark tent was produced for working plates 8½ x 6½ to 15 x 12 inches and under at a cost ranging from £6 10 0 to £8 10 0. Bottles, collodion pourers, developing cups and glass bathers were extra. The tent was adapted for all climates and described as: 'possessing all the conveniences of the most perfect Dark Room, combined with the greatest portability and compactness of form. The interior arrangements are, in a practical sense, better and more complete than those of any other. Proof against the effects of any climate, hot, cold or damp'.