From that website:
Roman Military Diploma On-line is a project to make collectors aware of the importance of publishing these documents.
Mail us if you need support in identifying details of a
military diploma you may have in your
collection. We are publishing
military diplomata in major scientific journals and appreciate very much new material from private
collections for this purpose. You can be named as donor, or you can remain anonymous, whichever you prefer. Contact us at romancoins.info @yahoo.com (please leave out the blank between our name and the @, this is to discourage spam robots)
All we need are clear fotos of both sides (either high resolution scan or real foto),
weight (in g), height and width, thickness, height of letters (in mm).
Even small fragments can
help to bring Archeology forward ! We have a large database of all known fragments. Almost 1000 diplomas are known to us so far, and we can match yours to known pieces, thus getting important information even out of minor pieces.