"1" - Aachen (government district Aachen), twice clear on each a little touched 1 silver penny black on rose, alongside large single circle postmark "AACHEN 13 2 4-5" on cover to Limbourg by Iserlohn, further routed to hasp, on face blue taxe "1", reverse railway cancel (TPO) "Elberfeld - Dortmund IR and "Dortmund - Elberfeldd II T" as well ambiguoused in red endorsing ink postmarked two ring cancel, transport traces and some not fresh, however interesting document.