Rembrandt, Harmenszoon van Rijn – Rembrandt drawing at a window Hermitage ~ part 10

The picture has something of this: people, portrait, man, engraving, leader, scientist, writer, wear, veil, elderly, sit, administration.
Perhaps it’s a black and white drawing of a man sitting at a window sill with a book in his hand and a mountain view out the window behind him.