Schwalmtal is a municipality in the district of Viersen, in North Rhine-Westphalia, Germany. It is named after the river Schwalm, which flows through the area. Schwalmtal is situated approx. 12 km west of Mönchengladbach. (source) Thank you Tami!
wow! i just realised, there's plenty of people who collects postcards. its interesting to see the places huh. i use to collect too, nowadays i post to friends and family.http://lilyrianitravelholic.blogspot.com/