Diamond Motel, 4813 North 12th Street, Quincy, Illinois. View looks west. North 12th was the original alignment for U. S. Route 24. Between 2012 and 2016, the motel was torn down.

From an old postcard -- DIAMOND MOTEL -- On U. S. 24, North of Quincy, Ill. New completely modern 12-unit Motel featuring family accommodations. Also double and single units. Owned and operated by Mr. & Mrs. Fritz Ostermueller. Restaurant near. Phone 6-1436. Recommended by AAA.

Here's a great article from 2012 about the motel!! https://www.whig.com/archive/article/...