Four Hugo Award winning novels PB 1st ed. originals Brin Cherryh Leiber Zelazny

Selling a set of 4 Hugo Award award winning novels, first published as an original paperback book. Books are:1. This Immortal by Roger Zelazny. Ace:F-393 1966. This is a First Edition original paperback copy, as stated by ©1966 No other statement of publication, printing or number line on the copyright page plus "First Book Publication" on the cover (see Internet Speculative Fiction Database page: https://www.isfdb.org/cgi-bin/pl.cgi?51078).This Immortal was the winner of the 1966 Hugo Award for best novel.Condition is Very Good. Book spine is tight some lean. There is some wrinkling to spine from the binding process. No vertical reading creases are present. There is a bookstore stamp on the front page.2. The Big Time by Fritz Leiber. Ace:D-491 1961. This is a First Edition original paperback copy, as stated by "The printing date and number are not stated and the "First Book Publication" statement on the front cover of The Big Time"  (see Internet Speculative Fiction Database page: https://www.isfdb.org/cgi-bin/pl.cgi?35973).This book is one of Ace's doubles and has Leiber's novel The Mind Spider on the opposite side.The Big Time was the winner of the 1958 Hugo Award for best novel.Condition is VG-Near Fine. Book spine is tight, no creases and with just a hint of lean and a few minor scuffs. There is one crease on the front cover along the spine.There is a pencilled "20" on the first page.3. Downbelow Station by C.J. Cherryh. DAW:87997 1981. This is a First Edition original paperback copy, as stated by First printing February 1981 and by number line "1 2 3 4 5 6 7 8 9" plus "Copyright © 1981 by C. J. Cherryh" on the copyright page (see Internet Speculative Fiction Database page: https://www.isfdb.org/cgi-bin/pl.cgi?283734).Downbelow Station was the winner of the 1982 Hugo Award for best novel.Condition is like new. This book looks and feels brand new.4. Startide Rising by David Brin. Bantam:23495 1984. This is a First Edition original paperback copy, as stated by "A Bantam Book / September 1983" plus the number line "O 0 9 8 7 6 5 4 3 2 1" on the copyright page (see Internet Speculative Fiction Database page: https://www.isfdb.org/cgi-bin/pl.cgi?33112)Startide Rising was the winner of the 1984 Hugo and Nebula Awards for best novel.Condition is like new. This book looks and feels brand new.I'm in the process of selling my personal collection of a few hundred titles. Most of my books are hardcover (plus some paperback) first editions of winning books of Hugo, Nebula, John W. Campbell, International Fantasy Awardand other awards, plus a few other notable books. Some have been signed and/or inscribed.Returns are not accepted, so please inspect the accompanying photos for condition details and ask me questions at least a day before the auction ends if you want more details.All my prices are in Canadian dollars.All books will be shipped via Canada Post. I will need your telephone number to ship items, so please contact me after your purchase with your telephone number to expedite shipping.Should you win multiple items, please don't pay immediately. I will send you an invoice with new shipping charges. This will make things easier for us both.