Photographic Processes  -  1892

Poison Notice

Early photographic processes brought dangers, as photographers heated mercury and mixed their chemicals. 

Even as late as 1892, the dark-room was far from being a safe environment.

The chart below is reproduced gives advice.  It was issued in the 1 July 1892 edition of The Practical Photographer, which suggested that it should be pasted onto a piece of cardboard and hung in the dark-room.

Poison Notice to be displayed in the Darkroom

[The Practical Photographer  -  1 July 1892,  p.175]