The Oversized Imaging Lab has recently imaged a 70 x 90 inch rolled Map of Santa Clara County from 1914.
It was shot in 108 tiles and stitched together to create a 600 ppi, 55554 x 42686 or 2.371 gigapixel, 7.11 GB digital surrogate. This is the largest object we have imaged in the Map Scanning Lab thus far - it is an exciting milestone!
There are approximately 40 more oversize rolled maps in the Branner Map Collections that are waiting to be digitized. These maps are challenging from an access standpoint due to their cumbersome size. As the Assistant Map Librarian Jane Ingalls put it "these maps are so large that the patron can't see the center of the Map when it is laid out on a table for viewing and it is hard to get to the center with a magnifying glass." Digitization solves this problem!