The signature of Francesco Didioni
<bdi><a href="https://en.wikipedia.org/wiki/en:Francesco_Didioni" class="extiw" title="w:en:Francesco Didioni"><span title="Italian painter (1839-1895)">Francesco Didioni</span></a>
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1882
<p>Strenna-album della Associazione della stampa periodica in Italia. — Roma, 1882. — Anno 2. — P. 88.
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