The image shows an engraving of a group of people in a room, with one person holding an object in their hand.
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The image shows an engraving of a group of people in a room, with one person holding an object in their hand. In the center of the image is a drawing of a furnace, with text at the bottom. The people in the drawing appear to be engaged in a heated discussion, with some of them looking intently at the furnace and others gesturing with their hands. The furnace is surrounded by a wall, and the room is filled with various tools and materials.
