Parallel Bible Circa 1880's(?)

I found this at an auction. None of the "dealers" bought it and decided for the price that it would make a nice conversation piece. I liked it because it's old, big, and never seen one like it. Can't find an exact publish date, but think it's 1880's because there is a certificate in it on a page with 188_ date. It has some writing in it, was a family bible. It's the illustrated Parallel Bible. Very neat and huge bible. It is in pretty good condition considering it's age. Published in Chicago. I'd like to know more info about it and how much it might be worth. Thank you so much!!