8 Aug 1900 cover from St Helena to Potchefstroom

8 Aug 1900 cover from St Helena to Potchefstroom in the old Zuid Afrikaanse Republiek (ZAR) with 2½d stamp cancelled by 05.19 cork canceller with Type 2 datestamp (Mabbett, 2002). Violet circular censor mark initialled EW by EH Walton on the front and 11 Oct 1900 Johannesburg and 8 Dec 1900 Potchefstroom arrival datestamps on the back.