e-rara.ch

Zoomable image pages usually follow this template

http://www.e-rara.ch/zut/content/pageview/{id}

And you can download them at

http://www.e-rara.ch/download/webcache/0/{id}

example

The image viewable at

http://www.e-rara.ch/zut/content/pageview/102788

is downloadable at

http://www.e-rara.ch/download/webcache/0/102788

Original issue: https://github.com/lovasoa/dezoomify/issues/47