I couldn't find anything for "Chicago College Co.," but I did find a piano company called the "Chicago COTTAGE Co." so I'm assuming that the writing on the piano is worn, or was simply misread. Depending on what year your organ is, it could be worth anywhere from $250 - $1000. The 1895 edition is the more valuable one, fetching bids around $1000. One from 1855 looks to be worth around $250. Keep in mind that the condition of the piece has a lot to do with it's value. The best thing to do would be to contact an antiques dealer who can probably help you assess the true value of your piece, since all antiques are different. I looked up places near your hometown of Winnsboro, TX, and their distance from Winnsboro, as well as contact information is below. Best of luck!
Jans - 3.1 miles N - 206 Market St - (903) 342-5267
Main Street Mall - 3.1 miles N - 207 N Main St - (903) 342-6864
Pappy's Treasures - 3.2 miles N - 111 E Elm St - (903) 342-0789
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