Los 60
6 d. greenish grey, vertical strip of 3, just touched in the outer frame line at upper left, otherwise wide margins, tied by square grid to large size envelope with adjacent "TORONTOÂ JUN 5" to Boston showing red "PAID"; some filing folds not affecting the stamps; the largest multiple of this stamp on cover Provenance: E.C. Fox Warren Wilkinson (2007) Joseph Hackmey (2011) Illustrated in Arfken, Leggett, Firby & Steinhart and in 'Gems of Canadian Philately'
