In Git 1.9.4, and its included gpg, I see silly error messages which can be eliminated by downloading iconv.dll and putting it in Git\bin\ and Git\libexec\git-core\:
gpg: error loading `iconv.dll': The specified module could not be found.
First, get the GnuPG public keys themselves from here. I saved that block to a file, and can check fingerprints like so:
>gpg --with-fingerprint gnupg.key
gpg: error loading `iconv.dll': The specified module could not be found.