Help to understand!

[яков]

I would like to hear from experts ......
What causes this is not an ordinary work on silver?
At $ 32 - 26 cm - salary weighs more than two kilograms
On a flat silver plate screws can be seen in the photo, screwed overhead angles, frame, crown, and so forth - the impression that the salary was prepared under the enamel - but it net.Rezba, the pressure is often the salary is very clear and deep, everything worked out, and very kachestvenno.Vozmozhno this technique is characterized by this wizard? - Or what else there is this explanation? I would be very grateful for the ideas.