Dimensions: 9 x 14 cm. (3.5 x 5.5″)

Publisher/Editor: Heinrich Koch, Essen

Condition: Postally unused. Good condition with some signs of age including surface marks and wear to the paper.

Notes: Essen is a city in western Germany. Zollverein Coal Mine Industrial Complex has been transformed to house several museums. A heritage trail through the former colliery chronicles the city’s history of coal mining and steel production. (Wikipedia)