United States. Department of AgriculturePanchromatic; By USDA-PMA (BHD-2G-23,24); Scale 1:21,940JPEGoai:digital.library.illinois.edu:edaacc10-8a10-0137-6d99-02d0d7bfd6e4-f426engPublicStereogram No. 426 - ReflectionsImageryIllinois--Sangamon CountyIllinois1950-05-17University of Illinois Urbana-Champaign