Canada SG153 2c dull purple on illustrated advertising envelope

1899 (JA 21) blue on buff DARTMOUTHS NATAL DAY. THURSDAY August 4th 1898 illustrated advertising envelope with photographic print of Regatta Day 1897 used from Halifax to Lower Stewiacke with 1898-1902 Numerals 2c dull purple tied by very fine squared circle and arrival backstamp of JA 23. Minor tone at lower left still very attractive the reverse with printed list extolling the virtues of Dartmouth. Original Purchased from Stanley Gibbons (Still on their card)