Archivi ER - Sistema informativo partecipato degli archivi storici in Emilia-Romagna

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    <did>
        <physdesc encodinganalog="ISAD 1 - 5 extent and medium of the unit of description" label="content">
            <extent>1</extent>
            <genreform>registro</genreform>
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        <unitid countrycode="IT" encodinganalog="ISAD 1 - 1 reference code" identifier="AS00057" label="Comune di Ferrara" repositorycode="ER.IBC">577 - 001.009</unitid>
        <unittitle encodinganalog="ISAD 1 - 2 title">Registri dei mandati
            <unitdate encodinganalog="ISAD 1 - 3 date(s)" normal="18910101-18911231">1891</unitdate>
        </unittitle>
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