Lot 6220
"20." Postage due charge mark on unpaid folded letter without contents postmarked Bergen (Norway) February 22nd 1866 and sent to Stockholm. According to the Postal agreement between Sweden and Norway valid from October 1 st 1865, the prepaid single rate was 20 öre and it was the same when charged to the addressee. Only two letters are known with this postage due mark.
