Natal 1882 Mourning Letter "Left at Leeds PO Till Called For"

1882 Mourning envelope from Pietermaritzburg to England annotated with instructional "Lft at PO Leeds till called for by one of the fly". Franked QV 6d (SG 70, bottom right corner defect) tied by GPO cds 6 11 82 with alongside a double circle mark in red. Arrival mark on reverse. F, interesting.