Natal 1901 Cork Cancel on Letter to Ireland

1901 "CORK" POSTMARK: Envelope to Ireland franked pair QV ½d's cancelled two strikes apparent CORK cancel (likely the crown in circle type illustrated by HKL). Pietermaritzburg (26 JY 1901) cds on reverse as also the Irish transits. The cover with imperfections (see scans), unusual, a rare use.