Here is a selection of uncorrected proofs and, at the bottom of the page, cover proofs.
Click on any pic to view a larger version.
DARE
1965 Putnam
Uncorrected Proofs
THE FABULOUS RIVERBOAT
1972 Putnam
Uncorrected Proof
VENUS ON THE HALF-SHELL
1975 Del Rey
Uncorrected Proof
THE DARK DESIGN
1977 Putnam
Uncorrected Proof
THE LAVALITE WORLD
1977 Ace Books
Uncorrected Proof
THE LOVERS
1979 Del Rey
Uncorrected Proof
DARK IS THE SUN
1979 Del Rey
Uncorrected Proof
THE UNREASONING MASK
1981 Putnam
Uncorrected Proof
GODS OF RIVERWORLD
1983 Putnam
Uncorrected Proof
RIVER OF ETERNITY
1983 Phantasia Press
Uncorrected Proof
THE CLASSIC PHILIP JOSÉ FARMER 1952-1964
1984 Crown
Uncorrected Proof
THE CLASSIC PHILIP JOSÉ FARMER 1964-1973
1984 Crown
Uncorrected Proof
THE GRAND ADVENTURE
1984 Berkley
Uncorrected Proof
DAYWORLD
1985 Berkley/Putnam
Uncorrected Proof
DAYWORLD REBEL
1987 Ace/Putnam
Uncorrected Proof
THE DUNGEON VOLUME 1
Bantam 1988
Uncorrected Page Proofs
DAYWORLD BREAKUP
1990 Tor
Uncorrected Proof
RED ORC'S RAGE
1991 Tor
Advance Uncorrected Proofs
ESCAPE FROM LOKI
1991 Bantam
Uncorrected Page Proofs
THE CATERPILLAR'S QUESTION
1992 Ace
Uncorrected Proof
MORE THAN FIRE
1993 Tor
Advance Uncorrected Proofs
NOTHING BURNS IN HELL
1998 Tor
Advanced Uncorrected Proof
THE BEST OF PHILIP JOSÉ FARMER
2006 Subterranean Press
Advance Uncorrected Proof
PEARLS FROM PEORIA
2006 Subterranean Press
Advance Uncorrected Proof
THE UNREASONING MASK
2007 Overlook Press
Uncorrected Proof
UP FROM THE BOTTOMLESS PIT AND OTHER STORIES
2007 Subterranean Press
Advanced Uncorrected Proof
VENUS ON THE HALF-SHELL AND OTHERS
2007 Subterranean Press
Advanced Uncorrected Proof
THE CITY BEYOND PLAY
2007 PS Publishing
Uncorrected Proofs
THE OTHER IN THE MIRROR
2008 Subterranean Press
Advanced Uncorrected Proof
THE EVIL IN PEMBERLEY HOUSE
2009 Subterranean Press
Advanced Uncorrected Proof
Cover Proofs
THE WIND WHALES OF ISHMAEL
1971 Ace
Cover Proof
DARE
1979 Del Rey
Cover Proof
THE DARK HEART OF TIME
1999 Del Rey
Cover Proof