How can you tell if it's woven paper or otherwise? The difference is a 55 cent stamp, or a $700 one, according to Scott's. For what it's worth, the paper seems a bit yellower and coarser than some of my other older Russian stamps. But this is the oldest Russian stamp I own.
You can tell the paper type by holding it up to a light and looking through the backside. For wove paper, you will see a fine diamond array of white dots. For horizontal laid paper (as defined by the philatelic world), you will see parallel horizontal white lines.
If you are not sure what to look for, the Introduction in the Scott catalog has a section on paper types with illustrations.