Slovak National Gallery makes 9,000 images free
March 21 2018

Picture: Slovak National Gallery, via Europeana
The Slovak National Gallery has put its collection online, in high-resolution, for anyone to use gratis. Wonderful. You can browse the Old Master collection here. And high-res photos are also available here on the Europeana site. Above is a self-portrait attributed to Jan Kupecky. Good, isn't it?
