http://www.piccadillymuseum.com
Displays memorabilia and advertising art including highway and subway signs,vintage cars,license plates,and petroliana from around the world. Includes hours, links and directions. Donations suggested. Located in Butte, Montana.
http://www.rain.org/~karpeles/
This is a Museum holding the largest private collection of original manuscripts and documents in the world. Locations in Buffalo, Charleston, Duluth, Jacksonville, Newburgh, Santa Barbara, Tacoma .