I can not determine the artist

[Amateur]

Сообщение от Guriev, Igor

About 20 years ago I was at a flea market in Paris, came across half a dozen paintings by Oleg Zinger, taken with stretchers.

Worth - a penny.

Perhaps this explains everything? I was not very clear sense of separation of the canvas. Saving space in storage? For example, although it is difficult to imagine that a person who sells paintings, there is no room to store them. Canvas without a stretcher was not protected from all kinds of pleats, folds, injuring the picture. Spoil it, so to speak, presentation. Only if there is nothing to spare, that is, if cheaper sub-frame picture (according to the seller), then there is some sense not to spare her and save dozens of rubles on a stretcher? So? But then, again from the perspective of the seller

Сообщение от Amateur

This in itself is not evidence in favor of the value of the picture.

But interesting, Igor Guriev, see if you work in Paris, Marc, Matisse, Utrillo, or at least Cortez or Blanchard without stretchers?