3 Sgr. on yellow, having bright colors, on all sides full / with enormous margins copy, centric clear tied by mute four ring cancel with dot of the danish Postcomtoire in the Duchy Schleswig, used at the railway mail. On Prussia a postmark rarity, only a few stamps are with this cancellation have become known. Slight glueing folds, otherwise perfectly Qualtiät and first-class optics!