The center sells books, fine art and prints through its online store.

He made a living selling his art cards and prints at marketplaces.

However, it did sell prints as part of and was the first political publishing workshop in Mexico to do so.

Tanca sells only original prints, which range from $15 to $2,500.

For years he made more money selling Japanese prints than building houses.

Much of the time, however, he remained solvent by selling Japanese prints.

That was in Chicago, 35 years ago, when her former husband, an art historian, plunged into selling prints.

I still make my living by selling prints to collectors.

In the 1920's poor health forced the sisters to stop taking pictures, but they continued to sell prints from their front parlor until 1935.

"In order to buy new photographs, we decided to sell prints that really have no future life here," he said.