From OFLB

Flickr has lots of great photos of type designs to download, and it is possible to download a complete set using Firefox:

• Run Firefox
• Install GreaseMonkey
• Install DownloadThemAll
• Restart Firefox
• Install Flickr Link Original Image script
• Install Flickr Auto Page script
• Go to a "set" page - something like http://www.flickr.com/photos/username/sets/12345678/
• Wait for all the "orig" links to appear
• Right click a bit of white background and select "Download Them All"
• Click the folder to select a directory to download into.
• Click OK and watch the progress bars!

To use image titles as file names, open up the Link Original Image script and change

   link.appendChild(document.createTextNode("ORIG"))

to

   link.appendChild(document.createTextNode(img.alt));