Old picture, we need an estimate

[exio666]

[QUOTE=Дилетант;3437961]How wonderful the work has survived from the seventeenth century! Here it is - the magic power glass, all these years defending the paint from dust, dirt and drops Vozduha@

Thanks that have paid attention to this topic, but it's got something to say? Let a copy... I am interested in what is roughly the cost of such a picture, whether it is the original, what do you think?