"The AIGA archives and special collections serve to identify, preserve, and make collections of enduring value available to the public. With more than 20,000 selections dating back to 1924, the AIGA Design Archives is a vital record of all disciplines of communication design."
"Explore over 30 centuries of design online, from ancient Roman marble to Pre-Columbian textiles, Renaissance drawings, contemporary 3D-printed chairs, and digital code."
Images for Reuse
Most search engines have a filter for finding images free of most copyright restrictions (yes, even Google Images!). The following websites have collections of images that are openly licensed specifically for reuse or are in the public domain.