iko ▁Museum s ▁of ▁Cape ▁Town . ▁Barbara ▁was ▁Ad rian ' s ▁daughter . ▁ ▁In ▁ 1 9 4 4 ▁J urg ens ▁won ▁the ▁C raw ford ▁Medal ▁from ▁the ▁Royal ▁Phil atel ic ▁Society ▁London ▁for ▁his ▁work ▁The ▁Hand stru ck ▁Let ter ▁St amps ▁of ▁the ▁Cape ▁of ▁Good ▁Hope ▁from ▁ 1 7 9 2 ▁to ▁ 1 8 5 3 ▁and ▁the ▁Post marks ▁from ▁ 1 8 5 3 ▁to ▁ 1 9 1 0 . ▁ ▁Al leg ations ▁of ▁forg ery ▁ ▁In ▁ 1 9 4 1 ▁phil atel ists ▁became ▁aware ▁of ▁repr ints ▁of ▁the ▁ 1 ▁pen ny ▁and ▁ 4 ▁pen ny ▁Cape ▁of ▁Good ▁Hope ▁' wood block ' ▁tri angular ▁st amps ▁in ▁the ▁original ▁colours . ▁Although ▁the ▁original ▁s tere os ▁had ▁been ▁def ac ed ▁with ▁a ▁vertical ▁line , ▁the ▁line ▁did ▁not ▁appear ▁correctly ▁on ▁the ▁repr ints ▁which ▁were ▁danger ously ▁similar ▁to ▁the ▁original s . ▁ ▁The ▁origin ator ▁of ▁the ▁repr ints ▁was ▁revealed ▁to ▁be ▁A . A . ▁J urg ens ▁who ▁described ▁everything ▁he ▁had ▁done ▁in ▁an ▁article ▁in ▁The ▁South ▁African ▁Phil atel ist ▁in ▁May ▁ 1 9 4 1 . ▁J urg ens ▁explained ▁that ▁he ▁had ▁received ▁permission ▁to ▁make ▁repr ints ▁in ▁black ▁from ▁the ▁Director ▁of ▁the ▁South ▁African ▁Museum ▁in ▁Cape ▁Town ▁which ▁were ▁to ▁be ▁displayed ▁in ▁a ▁case ▁with ▁South ▁African ▁postal ▁history