Hello Reza,

This item appears to be a lithographic print after the original 1761 oil painting by Bernardo Bellotto (Italian, 1720 - 1780) of the Nymphenburg Palace in Munich. The National Gallery of Art holds the oil painting in their collection. -- https://www.nga.gov/collection/art-object-page.46162.html

Bellotto was the nephew and pupil of Antonio Canale, the greatest painter of Venetian scenes. The estimate provided is based on recent auction estimates and results of this lithographic print and other lithographic prints after Bellotto paintings. Thank you again for all of your Mearto appraisal inquiries.