{"value"=>"<p>Corresponding negatives exist for many positives in the collection, particuarly contact sheets.</p> <p>Negatives are stored in folders labeled with three- or four-digit numbers present on some prints or contact sheets, as well as credit or captions in some instances.</p> <p>It is recommended to note three- or -four-digit numbers on positives and consult negative files for corresponding negatives.</p>"}