Lot 6231
"30 öre" Postage due charge mark on partly prepaid single rate folded letter with contents sent from Helsinki (Finland) April 27th 1863 to Stockholm. According to Postal convention of 1846 between Russia and Sweden it was possible to pay postage to the border only, the rate was 10 Sk banco (=30 öre) or 10 kopek silver (The cover is franked with 10 kopek Coat of arms m/60). Such letters had to be marked FRANCO or "FRANKO GRÄNSEN" as manuscript notation on front of letter, to distinguish them from unpaid letters. This letter is prepaid to the Swedish border. Four letters are known with this charge mark.
