Thanks Mike and Emmanuel for the reply and information! I believe there’s a set of 13 limited edition lithographs sold at Sotheby’s. This one isn’t a similar copy and features a signature on the logo along with handwritten limited edition numbering. Also looking at the movement SN I think this one d

Hi all, Came across an interesting Patek Philippe piece and wondering if anyone has seen something like this before. It’s a hand-rendered drawing of the Calibre 240 movement, pencil and colored pencil on heavy art paper, very detailed, showing the movement face with the serial number and calibre des