Lot
1499 
(Usages) 3¢ Orange Brown, Type II, pair and single, Pos. 17-18, 29L1E, tied by grids along with 1¢ blue, type II (7), pos. 49R1E on circa 1851 front only to Halifax, Nova Scotia, blue "Baltimore Md. Jul. 7" cds, red "Paid" and "10" rating handstamp, manuscript "5", endorsed "p 'Europa' "; 1¢ with file crease, Fine appearance, Fine appearance, a rare first week of use of both stamps. Scott No. 10A + 7 Estimate $300 - 400.
THIS COVER IS A SECOND DAY USE OF THE "THROUGH" RATE TO CANADA.
The U.S.-British Treaty of 1849 did not apply to the British provinces in North America. Prior to April 6, 1851, the internal rate of the U.S. or British North American province where a letter originated had to be prepaid. The internal rate of the receiving country would be collected from the addressee. On that date, a Postal Convention with Canada established a 10¢ or 6d "through" rate from point of origin to destination. The maritime provinces, including Nova Scotia, were not originally included in this convention. However, they were added to the agreement on July 6th, 1851.
Realized: $325