Browse Items (11 total)

daguerrean-head-brace-2062.jpg
An iron head brace used during the daguerrean period to stabilize the heads of portrait sitters and increase image clarity. The average exposure time for a daguerreotype was at least one minute, but sometimes ranged from three to fifteen minutes.
Output Formats

atom, dcmes-xml, json, omeka-json, omeka-xml, rss2