In 1841 photography pioneer Henry Talbot patented the calotype, slashing this time to minutes
Portrait of Henry Fitz, Jr., 
who in 1840 opened the first daguerreotype studio .... "Plumbe's Patent Colored 
Photographs" for the sum of three dollars.l4 In late 1839 ... 15 In 1841 he went ..... 
One of the greatest hazards faced by the early photographic pioneers was fire 
due.