"(Italian publisher, printer, ca. 1716-1795" - ulan, 28.07.2019
"Giovanni Bouchard, Italian bookseller and publisher active in Rome in 1750-1789. Initially published as Giovanni Bouchard; Gravier (apparently from the Gravier family of retail booksellers from Briançon, who operated in Genoa, Rome, Florence and Portugal) became a partner by 1760s, and that is how the Bouchard & Gravier press was founded. It pecialized in antiquities, maps, and prints; published Piranesi's early prints. In late 1790s the firm was dissolved; a separate firm of Bouchard and of Gravier was founded in the first half of 19th century." - https://commons.wikimedia.org/wiki/Category:Giovanni_Bouchard, 28.07.2019
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