[Konstantin]

1. Author.
2. Material and equipment manufacturing (oil on canvas, paper, pastels, watercolors, lithographs, oil, pencil, etc.).
3. Size (horizontal x vertical for painting).
4. Date (1899 /early., Mid-twentieth century. Etc.).
5. Captions, labels, stamps, birochki (if any - need photos).
6. State (breaks, debris, scrapes).
7. Expert opinion (if available) - the organization + name experts.
8. High-quality photograph of the picture, the back of the painting, photo captions (if any).
9. Origin of the picture.
10. Any other information useful for the attribution of the picture.

No need to provide information on the pieces, sfotkayte and shows. But without high-quality photograph of the painting is no normal response will be.