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</html><thumbnail_url>https://vopus.org/wp-content/uploads/2022/05/secretos-del-arte-alquimico-kwen-khan-khu.png</thumbnail_url><thumbnail_width>850</thumbnail_width><thumbnail_height>480</thumbnail_height><description>Very dear friends: I take up the pen again to write to you once more, and on this occasion to mention to you some details of this work of art entitled Allegory of the Virgin or Allegory of Chastity. This work was made between 1479 and 1480 by a painter named Hans Memling, belonging to [&hellip;]</description></oembed>
