Harry Potter and the Philosophers stone paperback book, with mistakes as per Philip Erringtons' JK Rowling: A Bibliography.This is an early print edition as you can see.Below is a list of some of the mistakes in this book and how they were corrected in later versions, hence the rarity! (see photos for some of the errors):
Page 15, line 3: he tried to kill the Potters son TO -he tried to kill the Potters son
Page 17, lines 31-32 - "I'll be takin' Sirius his bike back" changed to "I'd best get this bike away"
Page 31, line 34: deletion of a speech mark at the beginning of the sentence 'Harry could see Uncle Vernon's shiny black shoes...Which begins with a speech mark, even though the line is not being spoken.
Page 52, line 35 - "A Beginners' Guide" changed to "A Beginner'S Guide"
Page 56, line 17-18: "seventeen Sickles an ounce" TO "sixteen Sickles and ounce"
Page 72, line 25: "a shiny silver badge"TO "a shiny red and gold badge"
Page 87, line 31 - "Hogwarts, a History" changed to "Hogwarts: A History"
Page 92, line 22: "four hundred years"TO "five hundred years"
Page 101, line 4: "head of Gryffindor House" TO "Head of Gryffindor House"
Page 147, line 7-8: "looking forward to next day"TO "looking forward to the next day"
Page 168, lines 9-10 - "One Hundred Magical Herbs" changed to "One Thousand Magical Herbs"
Page 193, line 27: "that's the pub" TO "that's one of the pubs"
Page 205, line 3: "you go next to him"TO "you go there"
Page 205, line: 32: "I take one step forward and she'll take me" TO "I'll make my move and she'll take me"
Harry Potter is an ordinary boy who lives in a cupboard under the stairs at his Aunt Petunia and Uncle Vernon's house, which he thinks is normal for someone like him who's parents have been killed in a 'car crash'. He is bullied by them and his fat, spoilt cousin Dudley, and lives a very unremarkable life with only the odd hiccup (like his hair growing back overnight!) to cause him much to think about. That is until an owl turns up with a letter addressed to Harry and all hell breaks loose! He is literally rescued by a world where nothing is as it seems and magic lessons are the order of the day. Read and find out how Harry discovers his true heritage at Hogwarts School of Wizardry and Witchcraft, the reason behind his parents mysterious death, who is out to kill him, and how he uncovers the most amazing secret of all time, the fabled Philosopher's Stone! All this and muggles too. Now, what are they?