You found the file whose selector is "/%25".
If you got here via a selector of "/%2525", then your Gopher
client is borken (Lagrange is one such client).
If your client properly handles percent-encoding, you can
retrieve this file at:
gopher://asciz.com/0/%2525
If your client does not properly handle percent-encoding,
well, sorry, you can't get to this file via a gopher URL.
See
gopher://asciz.com/0/client-tests for more information
about percent-encoding.