single franking of the 1 Mark empire post office, dark carmine red, war time printing, perforation 25: 16 perforation holes, watermark 1, on official form C130 IIa, cancelled by bridge date postmark "Cross valley * (Kr. win) * -6.5.20 4-5 N" plus a pen mark on the stamp, declaration of collection the Berlinger mill Gmb H to the Imperial Post Office Krombach regarding the collection of postal items, including official certification of the signature in the lower section. the stamp serves here as a receipt for the handling fee for the issue of the collection declaration. the form is in condition typical of its age, above and at the bottom slightly trimmed, horizontal and vertical folded, small tears and creases. those pieces are very few known according to literature, because these pieces normally in the postal documents continuance and are destroyed after the retention period. detailed expertise Claudius Kroschel VP (2025) "the stamp is in fresh colours. in perfect and used condition