Here's an interesting cover that I recently picked up. It's from International Overalls, Ciudad Juarez, Chihuahua, Mexico and is postmarked April 17, 1919. I've dug around as much as I could and can't find anything on this company. The location of the company is right over the United States/Mexico border about a hours drive from Las Cruces, New Mexico. If anyone has any info, please pass it on.