You can get it from a keyserver:

gpg --keyserver pgpkeys.mit.edu --recv-key 4447D715

Or just copy and paste:

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.2.2 (GNU/Linux)
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=+53R
-----END PGP PUBLIC KEY BLOCK-----