Horses in the style of sepia, how much it might cost?

[SVGAllery]

Сообщение от NATA NOVA

Wikipedia:
Sepia photographic
Natural Sepia sometimes used for toning photographs in brown. A side effect is a sepia conversion of metallic silver sulfide, which is more resistant to fading. So many old black and white photos brown: they simply have more chances to survive until the present day.

1. Toning photos in brown by not natural sepia, and sodium sulfide
2. The transformation of metallic silver in the sulfide is not incidental, but the main and the only effect of the tinting
3. Metallic silver does not fade, it is under the influence of hydrogen sulfide contained in the air over time is transformed into sulfide. That is why even toned old B & W photos look brown

[NATA NOVA]