Lot of 8 paperback books by Fred Saberhagen.  All 8 are in the Berserker series, though not consecutive titles.  All are in good condition - all pages intact, no rips, no writing, and kept in good shape.  The pages look and feel older.  They are vintage - published 1970s and 80s.  There is slight creasing on the spines and a few have creasing and wear on cover.  Some say First Printing. Will ship by USPS Media Mail. Please see photos.

List of books:
Berserker (Ace)
Berserker Man (Ace)
Berserker's Planet (Ace)
The Berserker Wars (TOR) - says First Edition on cover - more worn than the other books
The Berserker Throne (TOR)
Berserker Blue Death (TOR)
The Ultimate Enemy (Ace)
The Berserker Attack (Otherworlds?)