What an adventure we had last fall with the dedicated staff at Silverleaf Custom Framing here in Boulder, CO. In order to accurately appraise an extensive set of Rembrandt etchings, we had to use their expertise in handling delicate art.
Silverleaf carefully opened up each previously framed piece, so we could look for “watermarks” in the paper that are only visible by placing it on a light table or up against a window. This is used to help date and authenticate works of art on paper.
Here are some example of the watermarks we found:
Stay tuned for more information on their true value!