| John Alinder Valborg Person copies glass negatives with the help of the sun. [Outside the home of photographer John Alinder in Sävasta, Altuna parish, Uppland, Sweden] 1920, 10 August Photograph, from gelatin negative Upplandsmuseet Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) , Identifier: AL1532 LL/112845
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