Here's the output:
% gpg -K 1F38684E
% gpg -K 1F38684E
gpg: Oops: keyid_from_fingerprint: no pubkey
sec dsa1024/46B1EFE1 1999-07-05
uid [ultimate] Neil W Rickert <rickert@cs.niu.edu>
ssb elg2048/1F38684E 1999-07-05
% gpg --with-keygrip -k 1F38684E
gpg: Oops: keyid_from_fingerprint: no pubkey
pub dsa1024/46B1EFE1 1999-07-05
Keygrip = AD607F40378A7ADBC06212C08554174AB7A02B0D
uid [ultimate] Neil W Rickert <rickert@cs.niu.edu>
sub elg2048/1F38684E 1999-07-05
Keygrip = 007FC4C272831E165FDC61E9B078E566D7F472A3
Files exist for both keygrips in that output.