Here’s another favorite from my collection: Ingersollia: Memorial Edition. This is an edition of Gems of Freethought, which was first published (I think) in 1882. It’s a collection of excerpts from Ingersoll’s lectures and essays. This particular edition was published in 1899, just months after his death in July 1899.
If you compare the portrait on the first page (below) to the Ingersoll advertising card I posted before, you’ll see this was a popular image of the Great Agnostic that was copied many times.