I picked up another Philip Jose Farmer paperback original associational copy:
Farmer, Philip Jose. The Purple Book. Tor, 1982. First edition paperback original, a Near Fine- copy that, while tight and square, shows numerous small spots of rubbing across the front and rear cover as well as slight age-darkening to pages. Inscribed to fellow SF/F author Robert Adams of Horseclans fame: “To Bob Adams/From/Philip Jose/Farmer.” Thematic collection, containing “The Oögenesis of Bird City,” “Riders of the Purple Wage,” “Spiders of the Purple Mage,” “The Making of Revelation, Part I”, and “The Long Wet Purple Dream of Rip van Winkle.” Bought for $10 off eBay.
Another Farmer PBO inscribed to an SF author in my library can be found here.