Bromide enlarging and contact printing : how to do it (1892)
Dresser, A. R · London : Fry Manufacturing Co. · leaf 37
25 APPARATUS DESCRIBED. by means of ordinary j)ins. Care must be taken to fasten out the }>aper as flat as possible, so as to secure good definition. … The yellow cap upon the lens will enable ihe exact position the paper ought to occupy to be decided upon, and if, after it is fastened into place, the picture be too high, or low, or too far to the right or left, it can be easily adjusted by means of the negative holder B, or the sliding lens…
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-stnicholasserial382dodg-49-52.webp)
