To find more photographs and material for research, it is useful to know where the work of Friedman is located that was acquired for collections of institutes and museums.
Images of these acquisitions are usually put online for this purpose. Permission is required to use this online material.

An overview of the institutions that acquired work of Friedman is included here, sorted by country:

(If you wish to notify us about these acquisitions, or if you know of other acquisitions that fit this list, please seek contact).