[Sandro]

Pasha, passport pictures can be only one - a restoration, you have to have in mind? Then, in order to acquire them - you have to pay now or in the restoration restorer. But for the examination of the passport is not needed, he needed only in cases where the picture shall be an expert after a major restoration.
If you want to have some paper for the expert, it is better written provenance (history of the existence of the picture) nothing could be better, it must be certified by the signatures of "historical characters" or their descendants who appear in Provenance.