A complete treatise on the art of retouching photographic negatives : and clear directions how to finish & colour photographs (1898)
Johnson, Robert · London : Marion · leaf 213
AD VERTISEMENTS 179 ENLARGING APPARATUS. … A well-made Lantern, fitted with triple wick lamp, giving a very powerful light. The condensing Lens is formed of two plano-convex Condensers of the finest quality, fitted in a brass cell. It is supplied with, or without, front Lens, any ordinary Portrait Lens serving for the purpose. Including…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial321dodg-270-348.webp)
