Los-Nr. 6228

"25 öre" + "17 öre" Postage due charge marks on unpaid folded letter with contents dated Copenhagen December 31st 1866 and sent to Halmstad. The "17 öre" charge mark (Nearby rate) was struck by mistake, when noticed the correct "25 öre" was struck. This letter is the only known with this combination of postage due charge marks.