Jim Simard, Head of the Alaska State Library Historical Collections, and Ron Klein, photographer and historian, will present “Wet Plates in Cold Climates: Alaska’s Oldest Old Photograph — and Why” on March 2 from noon to 1 p.m. at the Alaska State Museum in Juneau as part of the Wednesday noon lecture series. There is no charge for admission to this lecture. Simard and Klein are on a search for the oldest photo taken in Alaska as part of their work in creating a new exhibit on early Alaskan photography. Using historical research techniques and an acute knowledge of early photographic processes, they are combing through numerous public and private collections to find the most interesting and earliest photographs of Alaska. The exhibit, which will run through the summer, is tentatively titled, “The First 25 Years of Alaskan Photography,” and will be composed primarily of photographs and artifacts from the collections of the Alaska State Library, Archives and Museums. The exhibit will feature images by masters of “wet plate” photography who made significant contributions to the fascinating story of photography in the Alaskan frontier.