james - Stampa Botanica 1806 Salix - Unknown

This is an original antique botanical print from 1806, specifically plate number 1806, which depicts the plant Salix bicolor (known in English as Shining Dark-green Willow, i.e., Salice bicolore).
Details of the work
• Author and engraver: The work was created by the renowned British naturalist and illustrator James Sowerby, as evidenced by the inscription at the lower margin: «Published by Jas. Sowerby London».
• Original publication: The plate is part of the monumental scientific work English Botany; or, Coloured Figures of British Plants, a 36-volume collection published in installments between 1790 and 1814, whose scientific texts were curated by the founder of the Linnean Society, Sir James Edward Smith.
• Technique: It is an antique copperplate etching/engraving, historically refined and hand-colored with watercolors.
Authenticity and Certification
The back of the framed piece bears an Italian commercial label functioning as a Certificate of Guarantee, which classifies the item as an «8th-century engraving», confirming the vintage nature of the print (19th century) and not a modern reproduction. The overall dimensions of the frame are approximately 16 cm in width and 23 cm in height.
If you wish, I can help you to:
• Estimate the indicative market value in the antiques market for this type of Sowerby plate.
• Provide you with more details on the history of the English Botany publication.
• Offer advice on how to best preserve the print to prevent humidity or direct sunlight from damaging the old paper.