Something of an oddball category, all true firsts, all signed by contributors, but not by the most famous author.
Bierce, Ambrose. A Little Blue Book of Civil War Horror Stories. Borderlands Press, 2021. First edition hardback, #462 of 500 numbered copies signed by introduction author Lawrence C. Connolly, a Fine copy, sans dust jacket, as issued. Bierce famously disappeared in Mexico after riding with Pancho Villa. Since he was born in 1842, I’m going to go out on a limb and guess that he won’t be signing any more books. Bought from the publisher at the usual discount. I will have copies of this available in the next Lame Excuse Books catalog.
Farmer, Philip Jose. Greatheart Silver and Other Pulp Heroes. Meteor House, 2019. First edition hardback, a Fine copy in a Fine dust jacket, signed by editor Michael Croteau and introduction author Garyn G. Roberts. Collection of pulp hero tales. Bought off eBay for $24.
King, Stephen, and Richard Chizmar. Gwendy’s Button Box. Cemetery Dance, 2017. First edition hardback, a Fine copy in a Fine dust jacket, signed by Chizmar. “A brand new Castle Rock novella.” Bought at a Half Price Books in Houston for $30.