Martin van Maele (born Maurice François Alfred Martin on October 12, 1863 and died on September 5, 1926) was a French erotic illustrator said to have studied under Felicien Rops. He is renowned for his work in the field of erotic literature as well as non erotic literature like H G Wells' "Les Premiers Hommes dans la Lune" in 1901, and several French translations of Sherlock Holmes books.
Van Maele released various series of erotic etchings from the early 1900s up until his death. The best known of which is "La Grande Danse Macabre des Vifs" printed in 1905, which was really four series of ten prints, each with their own cover page (so a total of 44 prints). Like many of Van Maele's series, this one is rather rare, being a limited edition. The highest edition number I can find recorded for "La Grande Danse Macabre des Vifs" is no.75, so at least 75 were printed, but it is unlikely there were any more than 100 copies altogether.
Although the original prints are rather hard to get hold of, the erotic art of Martin van Maele received a boost in the 1970s with the republishing of many of his erotic works in "The Satirical Drawings of Martin van Maele". Copies of this book are still fairly easy to find from second hand and specialist book merchants.