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In the article, we will report on the recovery of a Melloni's optical benchbuilt at the end of 1800 by the "macchinista" Filippo Caliri in the "belle\'epoque" of Palermo. A scientific instrument of particular historical anddidactic interest belonging to the collection of Liceo Classico Statale"Umberto I" of Palermo. In the article, we will discuss the technical aspectsof the interventions carried out.  In questo articolo discuteremo del recupero di uno strumento scientifico diparticolare interesse storico-didattico appartenente alla Collezione del LiceoClassico Statale "Umberto I" di Palermo: un raro banco ottico del Mellonicostruito alla fine del 1800 nella Palermo della "belle \'epoque" dal"macchinista" Filippo Caliri. Nell'articolo discuteremo gli aspetti tecnicidegli interventi conservativi effettuati.

Recovery of a rare Melloni's optical bench built in Palermo during the  "belle \'epoque" (Recupero di un raro banco ottico del Melloni costruito  nella Palermo della "belle \'epoque")