A letter up for auction comes with an unopened envelope and a Hogwarts wax seal.
Hogwarts acceptance letter from first 'Harry Potter' movie could be yours: Here's how
29 Printable Hogwarts Acceptance Letter Templates
The original synopsis of Harry Potter that J.K. Rowling sent to
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Harry Potter – Hogwarts Acceptance Letter – 3.5” x
Just recieved my Hogwarts acceptance letter! : r/harrypotter
DIY Hogwarts Acceptance Letter Envelope - Free Printable
Hogwarts acceptance letter from first 'Harry Potter' movie could
Create Your Own Hogwarts Acceptance Letter