Plate 6: six hands, from 'The Book for Learning to Draw' (Livre pour apprendre à dessiner) https://www.rawpixel.com/image/9330657/photo-image-hands-art-vintageFree Image from public domain licensePlate 7: Five feet, from 'The Book for Learning to Draw' (Livre pour apprendre à dessiner) https://www.rawpixel.com/image/9330649/photo-image-paper-art-vintageFree Image from public domain licensePlate 1: two children sitting on the ground, the child on the right drawing while the child on the left holding the album… https://www.rawpixel.com/image/9328752/image-art-vintage-bookFree Image from public domain license