Ciaran: The original image was not suitable for the 2020 Collaboration, so I removed the blue lined paper by laying a thin stripe of it over the image and then using a Divide filter and lots of Skews, then took care of as many of the vertical lines as possible with rendered Noise of the image over itself with a Dissolve and about a half dozen high-pass filters, then erased the background and smoothed the outline, from this source: