Very tight and almost square: exterior appearance grades about near-Fine. No stamps, marks or writing. Age tanning is mild to moderate and uniform - a little darker than I like, but you may have great difficulty finding better.

Prime Number (1970) - a collection of stories by Harry Harrison. For all of these, this marks their first appearance in a Harrison collection. Apparently this was more popular in Britain - there was only one printing in America, while there were 4 British paperback printings (1975 to 1987.)

Mute Milton
The Greatest Car in the World
The Final Battle
The Powers of Observation
The Ghoul Squad
Toy Shop
You Men of Violence
The Finest Hunter in the World
Down to Earth
Commando Raid
Not Me, Not Amos Cabot!
The Secret of Stonehenge
Incident in the Ind
If - (original title= "Praiseworthy Saur")
Contact Man
The Pad
A Civil Service Servant - (original title= "The Fairly Civil Service")
A Criminal Act
Famous First Words

4 stories: "The Final Battle", "The Finest Hunter in the World", "Commando Raid", "The Pad" - are original to the 1970 Berkley paperback. The rest originally appeared from 1963 to 1969, in Amazing (2), New Worlds, Analog (4), Galaxy (2), Magazine of F&SF (3), Science Fantasy, IF, Alien Worlds.