As many collectors know, the Trenton Field located in Central Indiana was the home of hundreds of glass plants like Hemingray, King City Glass, Indiana Glass, Ball Corporation, etc. The geologic feature actually has a "sister" just over the Ohio Border: The Lima Field. This postcard is labeled: Location of First Oil Well In Trenton Rock Fields of Ohio at Lima, Ohio. Unused postcard. Some wear at edges and corners. $8.00 postage paid.