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Ada was once known for its clay tile company. Here's a post card showing the company. The wording, difficult to read states: 'ADA CLAY CO., ADA, O. DRAIN TILE SIZES 3 1/2 INCHES TO 24 INCHES.
The flip side reveals this was a Christmas and new year's greeting from the company. This particular card was mailed to a customer in Dola on Dec. 23, 1919.
Post card from the collection of Leland Crouse, Ada.