The Maillets began buying daguerreotypes in the 1960s and their 200-strong collection spans the full history and evolution of ...

January: Englishman William Henry Fox Talbot presents to the Royal Society of London a paper on photogenic drawing, permanent camera obscura ... process, the daguerreotype, before a joint session ...

The quarter-plate daguerreotype of former First Lady ... it with light-sensitive fumes before exposing it to a camera, and then drawing the latent image forth with mercury vapor and chemical ...